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Finding the Fourth Proportional to 67,939.65, 102,023.69 and 44,287.11

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Solution

The fourth proportional to 67,939.65, 102,023.69 and 44,287.11 is: 66,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,939.65 : 102,023.69 = 44,287.11 : x
  2. Step 2: Convert to fraction form
    67,939.65/102,023.69 = 44,287.11/x
  3. Step 3: Cross multiply
    67,939.65x = 102,023.69 × 44,287.11
  4. Step 4: Simplify right side
    67,939.65x = 4,518,334,160.20
  5. Step 5: Solve for x
    x = 4,518,334,160.20/67,939.65
  6. Step 6: Final answer
    x = 66,505.11

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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.