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Finding the Fourth Proportional to 239,894.88, 331,060.10 and 132,471.76

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Solution

The fourth proportional to 239,894.88, 331,060.10 and 132,471.76 is: 182,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,894.88 : 331,060.10 = 132,471.76 : x
  2. Step 2: Convert to fraction form
    239,894.88/331,060.10 = 132,471.76/x
  3. Step 3: Cross multiply
    239,894.88x = 331,060.10 × 132,471.76
  4. Step 4: Simplify right side
    239,894.88x = 43,856,114,112.78
  5. Step 5: Solve for x
    x = 43,856,114,112.78/239,894.88
  6. Step 6: Final answer
    x = 182,813.88

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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.