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Finding the Fourth Proportional to 83,526.72, 125,320.86 and 39,167.88

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Solution

The fourth proportional to 83,526.72, 125,320.86 and 39,167.88 is: 58,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,526.72 : 125,320.86 = 39,167.88 : x
  2. Step 2: Convert to fraction form
    83,526.72/125,320.86 = 39,167.88/x
  3. Step 3: Cross multiply
    83,526.72x = 125,320.86 × 39,167.88
  4. Step 4: Simplify right side
    83,526.72x = 4,908,552,405.98
  5. Step 5: Solve for x
    x = 4,908,552,405.98/83,526.72
  6. Step 6: Final answer
    x = 58,766.25

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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.