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Finding the Fourth Proportional to 74,398.90, 111,609.28 and 24,469.70

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Solution

The fourth proportional to 74,398.90, 111,609.28 and 24,469.70 is: 36,708.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,398.90 : 111,609.28 = 24,469.70 : x
  2. Step 2: Convert to fraction form
    74,398.90/111,609.28 = 24,469.70/x
  3. Step 3: Cross multiply
    74,398.90x = 111,609.28 × 24,469.70
  4. Step 4: Simplify right side
    74,398.90x = 2,731,045,598.82
  5. Step 5: Solve for x
    x = 2,731,045,598.82/74,398.90
  6. Step 6: Final answer
    x = 36,708.14

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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.