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Finding the Fourth Proportional to 99,889.58, 137,847.86 and 54,568.46

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Solution

The fourth proportional to 99,889.58, 137,847.86 and 54,568.46 is: 75,304.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,889.58 : 137,847.86 = 54,568.46 : x
  2. Step 2: Convert to fraction form
    99,889.58/137,847.86 = 54,568.46/x
  3. Step 3: Cross multiply
    99,889.58x = 137,847.86 × 54,568.46
  4. Step 4: Simplify right side
    99,889.58x = 7,522,145,710.90
  5. Step 5: Solve for x
    x = 7,522,145,710.90/99,889.58
  6. Step 6: Final answer
    x = 75,304.61

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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.