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Finding the Fourth Proportional to 132,325.32, 198,743.28 and 113,392.87

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Solution

The fourth proportional to 132,325.32, 198,743.28 and 113,392.87 is: 170,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,325.32 : 198,743.28 = 113,392.87 : x
  2. Step 2: Convert to fraction form
    132,325.32/198,743.28 = 113,392.87/x
  3. Step 3: Cross multiply
    132,325.32x = 198,743.28 × 113,392.87
  4. Step 4: Simplify right side
    132,325.32x = 22,536,070,912.41
  5. Step 5: Solve for x
    x = 22,536,070,912.41/132,325.32
  6. Step 6: Final answer
    x = 170,308.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.