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Finding the Fourth Proportional to 99,084, 136,735.92 and 54,374.88

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Solution

The fourth proportional to 99,084, 136,735.92 and 54,374.88 is: 75,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,084 : 136,735.92 = 54,374.88 : x
  2. Step 2: Convert to fraction form
    99,084/136,735.92 = 54,374.88/x
  3. Step 3: Cross multiply
    99,084x = 136,735.92 × 54,374.88
  4. Step 4: Simplify right side
    99,084x = 7,434,999,241.69
  5. Step 5: Solve for x
    x = 7,434,999,241.69/99,084
  6. Step 6: Final answer
    x = 75,037.33

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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.