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Finding the Fourth Proportional to 142,829,693.20, 214,244,539.80 and 74,693,270.80

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Solution

The fourth proportional to 142,829,693.20, 214,244,539.80 and 74,693,270.80 is: 112,039,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,829,693.20 : 214,244,539.80 = 74,693,270.80 : x
  2. Step 2: Convert to fraction form
    142,829,693.20/214,244,539.80 = 74,693,270.80/x
  3. Step 3: Cross multiply
    142,829,693.20x = 214,244,539.80 × 74,693,270.80
  4. Step 4: Simplify right side
    142,829,693.20x = 16,002,625,428,702,778
  5. Step 5: Solve for x
    x = 16,002,625,428,702,778/142,829,693.20
  6. Step 6: Final answer
    x = 112,039,906.20

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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.