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Finding the Fourth Proportional to 70,750.62, 105,976.17 and 48,459.42

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Solution

The fourth proportional to 70,750.62, 105,976.17 and 48,459.42 is: 72,586.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,750.62 : 105,976.17 = 48,459.42 : x
  2. Step 2: Convert to fraction form
    70,750.62/105,976.17 = 48,459.42/x
  3. Step 3: Cross multiply
    70,750.62x = 105,976.17 × 48,459.42
  4. Step 4: Simplify right side
    70,750.62x = 5,135,543,732.02
  5. Step 5: Solve for x
    x = 5,135,543,732.02/70,750.62
  6. Step 6: Final answer
    x = 72,586.55

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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.