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Finding the Fourth Proportional to 132,360.80, 198,541.20 and 73,311.80

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Solution

The fourth proportional to 132,360.80, 198,541.20 and 73,311.80 is: 109,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,360.80 : 198,541.20 = 73,311.80 : x
  2. Step 2: Convert to fraction form
    132,360.80/198,541.20 = 73,311.80/x
  3. Step 3: Cross multiply
    132,360.80x = 198,541.20 × 73,311.80
  4. Step 4: Simplify right side
    132,360.80x = 14,555,412,746.16
  5. Step 5: Solve for x
    x = 14,555,412,746.16/132,360.80
  6. Step 6: Final answer
    x = 109,967.70

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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.