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Finding the Fourth Proportional to 59,664,987.60, 83,757,730.80 and 59,664,987.60

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Solution

The fourth proportional to 59,664,987.60, 83,757,730.80 and 59,664,987.60 is: 83,757,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,664,987.60 : 83,757,730.80 = 59,664,987.60 : x
  2. Step 2: Convert to fraction form
    59,664,987.60/83,757,730.80 = 59,664,987.60/x
  3. Step 3: Cross multiply
    59,664,987.60x = 83,757,730.80 × 59,664,987.60
  4. Step 4: Simplify right side
    59,664,987.60x = 4,997,403,969,586,138
  5. Step 5: Solve for x
    x = 4,997,403,969,586,138/59,664,987.60
  6. Step 6: Final answer
    x = 83,757,730.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.