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Finding the Fourth Proportional to 74,108, 111,182.82 and 29,765.88

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Solution

The fourth proportional to 74,108, 111,182.82 and 29,765.88 is: 44,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,108 : 111,182.82 = 29,765.88 : x
  2. Step 2: Convert to fraction form
    74,108/111,182.82 = 29,765.88/x
  3. Step 3: Cross multiply
    74,108x = 111,182.82 × 29,765.88
  4. Step 4: Simplify right side
    74,108x = 3,309,454,478.18
  5. Step 5: Solve for x
    x = 3,309,454,478.18/74,108
  6. Step 6: Final answer
    x = 44,657.18

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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.