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Finding the Fourth Proportional to 132,364.40, 198,581.80 and 57,452.40

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Solution

The fourth proportional to 132,364.40, 198,581.80 and 57,452.40 is: 86,193.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,364.40 : 198,581.80 = 57,452.40 : x
  2. Step 2: Convert to fraction form
    132,364.40/198,581.80 = 57,452.40/x
  3. Step 3: Cross multiply
    132,364.40x = 198,581.80 × 57,452.40
  4. Step 4: Simplify right side
    132,364.40x = 11,409,001,006.32
  5. Step 5: Solve for x
    x = 11,409,001,006.32/132,364.40
  6. Step 6: Final answer
    x = 86,193.88

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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.