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Finding the Fourth Proportional to 99,544.89, 137,371.92 and 54,832.89

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Solution

The fourth proportional to 99,544.89, 137,371.92 and 54,832.89 is: 75,669.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,544.89 : 137,371.92 = 54,832.89 : x
  2. Step 2: Convert to fraction form
    99,544.89/137,371.92 = 54,832.89/x
  3. Step 3: Cross multiply
    99,544.89x = 137,371.92 × 54,832.89
  4. Step 4: Simplify right side
    99,544.89x = 7,532,499,378.45
  5. Step 5: Solve for x
    x = 7,532,499,378.45/99,544.89
  6. Step 6: Final answer
    x = 75,669.37

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1.5x scale

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.