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Finding the Fourth Proportional to 66,463.92, 91,650.56 and 43,773.93

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Solution

The fourth proportional to 66,463.92, 91,650.56 and 43,773.93 is: 60,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.92 : 91,650.56 = 43,773.93 : x
  2. Step 2: Convert to fraction form
    66,463.92/91,650.56 = 43,773.93/x
  3. Step 3: Cross multiply
    66,463.92x = 91,650.56 × 43,773.93
  4. Step 4: Simplify right side
    66,463.92x = 4,011,904,979.03
  5. Step 5: Solve for x
    x = 4,011,904,979.03/66,463.92
  6. Step 6: Final answer
    x = 60,362.15

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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.