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Finding the Fourth Proportional to 74,367.72, 111,575.88 and 29,971.62

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Solution

The fourth proportional to 74,367.72, 111,575.88 and 29,971.62 is: 44,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,367.72 : 111,575.88 = 29,971.62 : x
  2. Step 2: Convert to fraction form
    74,367.72/111,575.88 = 29,971.62/x
  3. Step 3: Cross multiply
    74,367.72x = 111,575.88 × 29,971.62
  4. Step 4: Simplify right side
    74,367.72x = 3,344,109,876.53
  5. Step 5: Solve for x
    x = 3,344,109,876.53/74,367.72
  6. Step 6: Final answer
    x = 44,967.22

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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.