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Finding the Fourth Proportional to 237,456.99, 327,691.17 and 128,562.48

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Solution

The fourth proportional to 237,456.99, 327,691.17 and 128,562.48 is: 177,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,456.99 : 327,691.17 = 128,562.48 : x
  2. Step 2: Convert to fraction form
    237,456.99/327,691.17 = 128,562.48/x
  3. Step 3: Cross multiply
    237,456.99x = 327,691.17 × 128,562.48
  4. Step 4: Simplify right side
    237,456.99x = 42,128,789,489.30
  5. Step 5: Solve for x
    x = 42,128,789,489.30/237,456.99
  6. Step 6: Final answer
    x = 177,416.51

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1.5x scale

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.