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Finding the Fourth Proportional to 99,603.29, 137,452.52 and 54,891.29

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Solution

The fourth proportional to 99,603.29, 137,452.52 and 54,891.29 is: 75,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,603.29 : 137,452.52 = 54,891.29 : x
  2. Step 2: Convert to fraction form
    99,603.29/137,452.52 = 54,891.29/x
  3. Step 3: Cross multiply
    99,603.29x = 137,452.52 × 54,891.29
  4. Step 4: Simplify right side
    99,603.29x = 7,544,946,617.41
  5. Step 5: Solve for x
    x = 7,544,946,617.41/99,603.29
  6. Step 6: Final answer
    x = 75,749.97

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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.