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Finding the Fourth Proportional to 89,745.70, 123,849.92 and 49,460.92

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Solution

The fourth proportional to 89,745.70, 123,849.92 and 49,460.92 is: 68,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,745.70 : 123,849.92 = 49,460.92 : x
  2. Step 2: Convert to fraction form
    89,745.70/123,849.92 = 49,460.92/x
  3. Step 3: Cross multiply
    89,745.70x = 123,849.92 × 49,460.92
  4. Step 4: Simplify right side
    89,745.70x = 6,125,730,985.13
  5. Step 5: Solve for x
    x = 6,125,730,985.13/89,745.70
  6. Step 6: Final answer
    x = 68,256.54

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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.