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Finding the Fourth Proportional to 132,401.84, 198,615.72 and 43,619.12

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Solution

The fourth proportional to 132,401.84, 198,615.72 and 43,619.12 is: 65,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,401.84 : 198,615.72 = 43,619.12 : x
  2. Step 2: Convert to fraction form
    132,401.84/198,615.72 = 43,619.12/x
  3. Step 3: Cross multiply
    132,401.84x = 198,615.72 × 43,619.12
  4. Step 4: Simplify right side
    132,401.84x = 8,663,442,924.57
  5. Step 5: Solve for x
    x = 8,663,442,924.57/132,401.84
  6. Step 6: Final answer
    x = 65,432.95

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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.