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Finding the Fourth Proportional to 239,672.61, 330,755.12 and 132,249.56

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Solution

The fourth proportional to 239,672.61, 330,755.12 and 132,249.56 is: 182,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,672.61 : 330,755.12 = 132,249.56 : x
  2. Step 2: Convert to fraction form
    239,672.61/330,755.12 = 132,249.56/x
  3. Step 3: Cross multiply
    239,672.61x = 330,755.12 × 132,249.56
  4. Step 4: Simplify right side
    239,672.61x = 43,742,219,087.75
  5. Step 5: Solve for x
    x = 43,742,219,087.75/239,672.61
  6. Step 6: Final answer
    x = 182,508.21

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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.