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Finding the Fourth Proportional to 123,423.20, 185,134.80 and 44,549.60

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Solution

The fourth proportional to 123,423.20, 185,134.80 and 44,549.60 is: 66,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,423.20 : 185,134.80 = 44,549.60 : x
  2. Step 2: Convert to fraction form
    123,423.20/185,134.80 = 44,549.60/x
  3. Step 3: Cross multiply
    123,423.20x = 185,134.80 × 44,549.60
  4. Step 4: Simplify right side
    123,423.20x = 8,247,681,286.08
  5. Step 5: Solve for x
    x = 8,247,681,286.08/123,423.20
  6. Step 6: Final answer
    x = 66,824.40

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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.