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Finding the Fourth Proportional to 132,105.87, 198,042.17 and 101,079.63

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Solution

The fourth proportional to 132,105.87, 198,042.17 and 101,079.63 is: 151,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,105.87 : 198,042.17 = 101,079.63 : x
  2. Step 2: Convert to fraction form
    132,105.87/198,042.17 = 101,079.63/x
  3. Step 3: Cross multiply
    132,105.87x = 198,042.17 × 101,079.63
  4. Step 4: Simplify right side
    132,105.87x = 20,018,028,762.60
  5. Step 5: Solve for x
    x = 20,018,028,762.60/132,105.87
  6. Step 6: Final answer
    x = 151,530.20

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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.