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Finding the Fourth Proportional to 66,381.73, 99,342.96 and 63,626.11

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Solution

The fourth proportional to 66,381.73, 99,342.96 and 63,626.11 is: 95,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.73 : 99,342.96 = 63,626.11 : x
  2. Step 2: Convert to fraction form
    66,381.73/99,342.96 = 63,626.11/x
  3. Step 3: Cross multiply
    66,381.73x = 99,342.96 × 63,626.11
  4. Step 4: Simplify right side
    66,381.73x = 6,320,806,100.69
  5. Step 5: Solve for x
    x = 6,320,806,100.69/66,381.73
  6. Step 6: Final answer
    x = 95,219.06

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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.