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Finding the Fourth Proportional to 89,273.92, 123,197.92 and 48,987.92

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Solution

The fourth proportional to 89,273.92, 123,197.92 and 48,987.92 is: 67,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,273.92 : 123,197.92 = 48,987.92 : x
  2. Step 2: Convert to fraction form
    89,273.92/123,197.92 = 48,987.92/x
  3. Step 3: Cross multiply
    89,273.92x = 123,197.92 × 48,987.92
  4. Step 4: Simplify right side
    89,273.92x = 6,035,209,849.13
  5. Step 5: Solve for x
    x = 6,035,209,849.13/89,273.92
  6. Step 6: Final answer
    x = 67,603.28

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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.