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Finding the Fourth Proportional to 99,110.57, 136,773.57 and 53,788.95

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Solution

The fourth proportional to 99,110.57, 136,773.57 and 53,788.95 is: 74,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,110.57 : 136,773.57 = 53,788.95 : x
  2. Step 2: Convert to fraction form
    99,110.57/136,773.57 = 53,788.95/x
  3. Step 3: Cross multiply
    99,110.57x = 136,773.57 × 53,788.95
  4. Step 4: Simplify right side
    99,110.57x = 7,356,906,718.05
  5. Step 5: Solve for x
    x = 7,356,906,718.05/99,110.57
  6. Step 6: Final answer
    x = 74,229.29

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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.