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Finding the Fourth Proportional to 171,998,972.80, 241,478,806.40 and 171,998,972.80

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Solution

The fourth proportional to 171,998,972.80, 241,478,806.40 and 171,998,972.80 is: 241,478,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,998,972.80 : 241,478,806.40 = 171,998,972.80 : x
  2. Step 2: Convert to fraction form
    171,998,972.80/241,478,806.40 = 171,998,972.80/x
  3. Step 3: Cross multiply
    171,998,972.80x = 241,478,806.40 × 171,998,972.80
  4. Step 4: Simplify right side
    171,998,972.80x = 41,534,106,653,770,072
  5. Step 5: Solve for x
    x = 41,534,106,653,770,072/171,998,972.80
  6. Step 6: Final answer
    x = 241,478,806.40

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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.