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Finding the Fourth Proportional to 86,565,860,544.30, 129,848,790,816.45 and 86,565,860,544.30

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Solution

The fourth proportional to 86,565,860,544.30, 129,848,790,816.45 and 86,565,860,544.30 is: 129,848,790,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565,860,544.30 : 129,848,790,816.45 = 86,565,860,544.30 : x
  2. Step 2: Convert to fraction form
    86,565,860,544.30/129,848,790,816.45 = 86,565,860,544.30/x
  3. Step 3: Cross multiply
    86,565,860,544.30x = 129,848,790,816.45 × 86,565,860,544.30
  4. Step 4: Simplify right side
    86,565,860,544.30x = 11,240,472,317,662,794,350,592
  5. Step 5: Solve for x
    x = 11,240,472,317,662,794,350,592/86,565,860,544.30
  6. Step 6: Final answer
    x = 129,848,790,816.45

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.