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Finding the Fourth Proportional to 66,336.87, 91,545.88 and 36,123.26

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Solution

The fourth proportional to 66,336.87, 91,545.88 and 36,123.26 is: 49,850.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,336.87 : 91,545.88 = 36,123.26 : x
  2. Step 2: Convert to fraction form
    66,336.87/91,545.88 = 36,123.26/x
  3. Step 3: Cross multiply
    66,336.87x = 91,545.88 × 36,123.26
  4. Step 4: Simplify right side
    66,336.87x = 3,306,935,625.17
  5. Step 5: Solve for x
    x = 3,306,935,625.17/66,336.87
  6. Step 6: Final answer
    x = 49,850.64

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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.