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Finding the Fourth Proportional to 71,803.71, 107,545.19 and 52,036.88

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Solution

The fourth proportional to 71,803.71, 107,545.19 and 52,036.88 is: 77,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,803.71 : 107,545.19 = 52,036.88 : x
  2. Step 2: Convert to fraction form
    71,803.71/107,545.19 = 52,036.88/x
  3. Step 3: Cross multiply
    71,803.71x = 107,545.19 × 52,036.88
  4. Step 4: Simplify right side
    71,803.71x = 5,596,315,348.70
  5. Step 5: Solve for x
    x = 5,596,315,348.70/71,803.71
  6. Step 6: Final answer
    x = 77,939.08

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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.