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Finding the Fourth Proportional to 73,469.61, 101,389.20 and 42,841.88

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Solution

The fourth proportional to 73,469.61, 101,389.20 and 42,841.88 is: 59,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,469.61 : 101,389.20 = 42,841.88 : x
  2. Step 2: Convert to fraction form
    73,469.61/101,389.20 = 42,841.88/x
  3. Step 3: Cross multiply
    73,469.61x = 101,389.20 × 42,841.88
  4. Step 4: Simplify right side
    73,469.61x = 4,343,703,432.75
  5. Step 5: Solve for x
    x = 4,343,703,432.75/73,469.61
  6. Step 6: Final answer
    x = 59,122.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.