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Finding the Fourth Proportional to 125,893.62, 173,731.68 and 71,456.04

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Solution

The fourth proportional to 125,893.62, 173,731.68 and 71,456.04 is: 98,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,893.62 : 173,731.68 = 71,456.04 : x
  2. Step 2: Convert to fraction form
    125,893.62/173,731.68 = 71,456.04/x
  3. Step 3: Cross multiply
    125,893.62x = 173,731.68 × 71,456.04
  4. Step 4: Simplify right side
    125,893.62x = 12,414,177,875.35
  5. Step 5: Solve for x
    x = 12,414,177,875.35/125,893.62
  6. Step 6: Final answer
    x = 98,608.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.