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Finding the Fourth Proportional to 329,793,433.80, 494,654,721.30 and 87,456,337.80

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Solution

The fourth proportional to 329,793,433.80, 494,654,721.30 and 87,456,337.80 is: 131,175,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,793,433.80 : 494,654,721.30 = 87,456,337.80 : x
  2. Step 2: Convert to fraction form
    329,793,433.80/494,654,721.30 = 87,456,337.80/x
  3. Step 3: Cross multiply
    329,793,433.80x = 494,654,721.30 × 87,456,337.80
  4. Step 4: Simplify right side
    329,793,433.80x = 43,260,690,400,377,656
  5. Step 5: Solve for x
    x = 43,260,690,400,377,656/329,793,433.80
  6. Step 6: Final answer
    x = 131,175,111.35

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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.