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Finding the Fourth Proportional to 132,492.27, 198,279.14 and 126,981.03

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Solution

The fourth proportional to 132,492.27, 198,279.14 and 126,981.03 is: 190,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,492.27 : 198,279.14 = 126,981.03 : x
  2. Step 2: Convert to fraction form
    132,492.27/198,279.14 = 126,981.03/x
  3. Step 3: Cross multiply
    132,492.27x = 198,279.14 × 126,981.03
  4. Step 4: Simplify right side
    132,492.27x = 25,177,689,424.71
  5. Step 5: Solve for x
    x = 25,177,689,424.71/132,492.27
  6. Step 6: Final answer
    x = 190,031.38

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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.