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Finding the Fourth Proportional to 132,442.40, 198,586.80 and 49,344.80

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Solution

The fourth proportional to 132,442.40, 198,586.80 and 49,344.80 is: 73,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,442.40 : 198,586.80 = 49,344.80 : x
  2. Step 2: Convert to fraction form
    132,442.40/198,586.80 = 49,344.80/x
  3. Step 3: Cross multiply
    132,442.40x = 198,586.80 × 49,344.80
  4. Step 4: Simplify right side
    132,442.40x = 9,799,225,928.64
  5. Step 5: Solve for x
    x = 9,799,225,928.64/132,442.40
  6. Step 6: Final answer
    x = 73,988.59

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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.