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Finding the Fourth Proportional to 90,111.53, 124,348.89 and 49,822.87

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Solution

The fourth proportional to 90,111.53, 124,348.89 and 49,822.87 is: 68,752.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,111.53 : 124,348.89 = 49,822.87 : x
  2. Step 2: Convert to fraction form
    90,111.53/124,348.89 = 49,822.87/x
  3. Step 3: Cross multiply
    90,111.53x = 124,348.89 × 49,822.87
  4. Step 4: Simplify right side
    90,111.53x = 6,195,418,581.11
  5. Step 5: Solve for x
    x = 6,195,418,581.11/90,111.53
  6. Step 6: Final answer
    x = 68,752.78

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