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Finding the Fourth Proportional to 67,509.78, 101,279.01 and 23,124.60

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Solution

The fourth proportional to 67,509.78, 101,279.01 and 23,124.60 is: 34,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,509.78 : 101,279.01 = 23,124.60 : x
  2. Step 2: Convert to fraction form
    67,509.78/101,279.01 = 23,124.60/x
  3. Step 3: Cross multiply
    67,509.78x = 101,279.01 × 23,124.60
  4. Step 4: Simplify right side
    67,509.78x = 2,342,036,594.65
  5. Step 5: Solve for x
    x = 2,342,036,594.65/67,509.78
  6. Step 6: Final answer
    x = 34,691.81

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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.