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Finding the Fourth Proportional to 132,322.60, 198,568.95 and 73,200.70

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Solution

The fourth proportional to 132,322.60, 198,568.95 and 73,200.70 is: 109,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,322.60 : 198,568.95 = 73,200.70 : x
  2. Step 2: Convert to fraction form
    132,322.60/198,568.95 = 73,200.70/x
  3. Step 3: Cross multiply
    132,322.60x = 198,568.95 × 73,200.70
  4. Step 4: Simplify right side
    132,322.60x = 14,535,386,138.27
  5. Step 5: Solve for x
    x = 14,535,386,138.27/132,322.60
  6. Step 6: Final answer
    x = 109,848.10

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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.