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Finding the Fourth Proportional to 155,232.59, 232,654.08 and 66,381.60

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Solution

The fourth proportional to 155,232.59, 232,654.08 and 66,381.60 is: 99,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,232.59 : 232,654.08 = 66,381.60 : x
  2. Step 2: Convert to fraction form
    155,232.59/232,654.08 = 66,381.60/x
  3. Step 3: Cross multiply
    155,232.59x = 232,654.08 × 66,381.60
  4. Step 4: Simplify right side
    155,232.59x = 15,443,951,198.31
  5. Step 5: Solve for x
    x = 15,443,951,198.31/155,232.59
  6. Step 6: Final answer
    x = 99,489.11

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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.