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Finding the Fourth Proportional to 74,442.70, 111,640.05 and 24,510.91

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Solution

The fourth proportional to 74,442.70, 111,640.05 and 24,510.91 is: 36,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,442.70 : 111,640.05 = 24,510.91 : x
  2. Step 2: Convert to fraction form
    74,442.70/111,640.05 = 24,510.91/x
  3. Step 3: Cross multiply
    74,442.70x = 111,640.05 × 24,510.91
  4. Step 4: Simplify right side
    74,442.70x = 2,736,399,217.95
  5. Step 5: Solve for x
    x = 2,736,399,217.95/74,442.70
  6. Step 6: Final answer
    x = 36,758.46

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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.