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Finding the Fourth Proportional to 239,702.88, 330,789.72 and 132,272.88

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Solution

The fourth proportional to 239,702.88, 330,789.72 and 132,272.88 is: 182,536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,702.88 : 330,789.72 = 132,272.88 : x
  2. Step 2: Convert to fraction form
    239,702.88/330,789.72 = 132,272.88/x
  3. Step 3: Cross multiply
    239,702.88x = 330,789.72 × 132,272.88
  4. Step 4: Simplify right side
    239,702.88x = 43,754,508,938.79
  5. Step 5: Solve for x
    x = 43,754,508,938.79/239,702.88
  6. Step 6: Final answer
    x = 182,536.43

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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.