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Finding the Fourth Proportional to 275,591,403.20, 413,387,104.80 and 93,838,581.20

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Solution

The fourth proportional to 275,591,403.20, 413,387,104.80 and 93,838,581.20 is: 140,757,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,591,403.20 : 413,387,104.80 = 93,838,581.20 : x
  2. Step 2: Convert to fraction form
    275,591,403.20/413,387,104.80 = 93,838,581.20/x
  3. Step 3: Cross multiply
    275,591,403.20x = 413,387,104.80 × 93,838,581.20
  4. Step 4: Simplify right side
    275,591,403.20x = 38,791,659,400,807,712
  5. Step 5: Solve for x
    x = 38,791,659,400,807,712/275,591,403.20
  6. Step 6: Final answer
    x = 140,757,871.80

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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.