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Finding the Fourth Proportional to 124,614.79, 172,193.24 and 88,742.52

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Solution

The fourth proportional to 124,614.79, 172,193.24 and 88,742.52 is: 122,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,614.79 : 172,193.24 = 88,742.52 : x
  2. Step 2: Convert to fraction form
    124,614.79/172,193.24 = 88,742.52/x
  3. Step 3: Cross multiply
    124,614.79x = 172,193.24 × 88,742.52
  4. Step 4: Simplify right side
    124,614.79x = 15,280,862,266.42
  5. Step 5: Solve for x
    x = 15,280,862,266.42/124,614.79
  6. Step 6: Final answer
    x = 122,624.79

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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.