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Finding the Fourth Proportional to 48,227.40, 72,513.90 and 40,624.20

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Solution

The fourth proportional to 48,227.40, 72,513.90 and 40,624.20 is: 61,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,227.40 : 72,513.90 = 40,624.20 : x
  2. Step 2: Convert to fraction form
    48,227.40/72,513.90 = 40,624.20/x
  3. Step 3: Cross multiply
    48,227.40x = 72,513.90 × 40,624.20
  4. Step 4: Simplify right side
    48,227.40x = 2,945,819,176.38
  5. Step 5: Solve for x
    x = 2,945,819,176.38/48,227.40
  6. Step 6: Final answer
    x = 61,081.86

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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.