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Finding the Fourth Proportional to 242,691.29, 364,200.96 and 84,921.11

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Solution

The fourth proportional to 242,691.29, 364,200.96 and 84,921.11 is: 127,439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,691.29 : 364,200.96 = 84,921.11 : x
  2. Step 2: Convert to fraction form
    242,691.29/364,200.96 = 84,921.11/x
  3. Step 3: Cross multiply
    242,691.29x = 364,200.96 × 84,921.11
  4. Step 4: Simplify right side
    242,691.29x = 30,928,349,171.79
  5. Step 5: Solve for x
    x = 30,928,349,171.79/242,691.29
  6. Step 6: Final answer
    x = 127,439.06

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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.