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Finding the Fourth Proportional to 99,801.56, 137,726.49 and 54,480.54

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Solution

The fourth proportional to 99,801.56, 137,726.49 and 54,480.54 is: 75,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,801.56 : 137,726.49 = 54,480.54 : x
  2. Step 2: Convert to fraction form
    99,801.56/137,726.49 = 54,480.54/x
  3. Step 3: Cross multiply
    99,801.56x = 137,726.49 × 54,480.54
  4. Step 4: Simplify right side
    99,801.56x = 7,503,413,547.50
  5. Step 5: Solve for x
    x = 7,503,413,547.50/99,801.56
  6. Step 6: Final answer
    x = 75,183.33

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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.