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Finding the Fourth Proportional to 99,572.96, 137,409.92 and 54,250.80

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Solution

The fourth proportional to 99,572.96, 137,409.92 and 54,250.80 is: 74,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,572.96 : 137,409.92 = 54,250.80 : x
  2. Step 2: Convert to fraction form
    99,572.96/137,409.92 = 54,250.80/x
  3. Step 3: Cross multiply
    99,572.96x = 137,409.92 × 54,250.80
  4. Step 4: Simplify right side
    99,572.96x = 7,454,597,816.68
  5. Step 5: Solve for x
    x = 7,454,597,816.68/99,572.96
  6. Step 6: Final answer
    x = 74,865.69

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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.