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Finding the Fourth Proportional to 95,278.35, 142,972.88 and 42,687.84

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Solution

The fourth proportional to 95,278.35, 142,972.88 and 42,687.84 is: 64,056.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,278.35 : 142,972.88 = 42,687.84 : x
  2. Step 2: Convert to fraction form
    95,278.35/142,972.88 = 42,687.84/x
  3. Step 3: Cross multiply
    95,278.35x = 142,972.88 × 42,687.84
  4. Step 4: Simplify right side
    95,278.35x = 6,103,203,425.78
  5. Step 5: Solve for x
    x = 6,103,203,425.78/95,278.35
  6. Step 6: Final answer
    x = 64,056.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.