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Finding the Fourth Proportional to 424,403.92, 636,590.76 and 108,863.92

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Solution

The fourth proportional to 424,403.92, 636,590.76 and 108,863.92 is: 163,292.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,403.92 : 636,590.76 = 108,863.92 : x
  2. Step 2: Convert to fraction form
    424,403.92/636,590.76 = 108,863.92/x
  3. Step 3: Cross multiply
    424,403.92x = 636,590.76 × 108,863.92
  4. Step 4: Simplify right side
    424,403.92x = 69,301,765,569.38
  5. Step 5: Solve for x
    x = 69,301,765,569.38/424,403.92
  6. Step 6: Final answer
    x = 163,292.00

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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.