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Finding the Fourth Proportional to 71,855.96, 107,746.98 and 38,604.04

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Solution

The fourth proportional to 71,855.96, 107,746.98 and 38,604.04 is: 57,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,855.96 : 107,746.98 = 38,604.04 : x
  2. Step 2: Convert to fraction form
    71,855.96/107,746.98 = 38,604.04/x
  3. Step 3: Cross multiply
    71,855.96x = 107,746.98 × 38,604.04
  4. Step 4: Simplify right side
    71,855.96x = 4,159,468,725.80
  5. Step 5: Solve for x
    x = 4,159,468,725.80/71,855.96
  6. Step 6: Final answer
    x = 57,886.20

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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.