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Finding the Fourth Proportional to 146,991,646.80, 220,487,470.20 and 103,153,669.20

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Solution

The fourth proportional to 146,991,646.80, 220,487,470.20 and 103,153,669.20 is: 154,730,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,991,646.80 : 220,487,470.20 = 103,153,669.20 : x
  2. Step 2: Convert to fraction form
    146,991,646.80/220,487,470.20 = 103,153,669.20/x
  3. Step 3: Cross multiply
    146,991,646.80x = 220,487,470.20 × 103,153,669.20
  4. Step 4: Simplify right side
    146,991,646.80x = 22,744,091,563,755,656
  5. Step 5: Solve for x
    x = 22,744,091,563,755,656/146,991,646.80
  6. Step 6: Final answer
    x = 154,730,503.80

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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.