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Finding the Fourth Proportional to 89,130.89, 123,001.61 and 48,843.80

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Solution

The fourth proportional to 89,130.89, 123,001.61 and 48,843.80 is: 67,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,130.89 : 123,001.61 = 48,843.80 : x
  2. Step 2: Convert to fraction form
    89,130.89/123,001.61 = 48,843.80/x
  3. Step 3: Cross multiply
    89,130.89x = 123,001.61 × 48,843.80
  4. Step 4: Simplify right side
    89,130.89x = 6,007,865,179.29
  5. Step 5: Solve for x
    x = 6,007,865,179.29/89,130.89
  6. Step 6: Final answer
    x = 67,404.98

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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.