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Finding the Fourth Proportional to 123,557.64, 185,269.84 and 66,662.04

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Solution

The fourth proportional to 123,557.64, 185,269.84 and 66,662.04 is: 99,957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,557.64 : 185,269.84 = 66,662.04 : x
  2. Step 2: Convert to fraction form
    123,557.64/185,269.84 = 66,662.04/x
  3. Step 3: Cross multiply
    123,557.64x = 185,269.84 × 66,662.04
  4. Step 4: Simplify right side
    123,557.64x = 12,350,465,484.87
  5. Step 5: Solve for x
    x = 12,350,465,484.87/123,557.64
  6. Step 6: Final answer
    x = 99,957.12

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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.