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Finding the Fourth Proportional to 123,248.70, 184,872.45 and 48,315.90

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Solution

The fourth proportional to 123,248.70, 184,872.45 and 48,315.90 is: 72,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,248.70 : 184,872.45 = 48,315.90 : x
  2. Step 2: Convert to fraction form
    123,248.70/184,872.45 = 48,315.90/x
  3. Step 3: Cross multiply
    123,248.70x = 184,872.45 × 48,315.90
  4. Step 4: Simplify right side
    123,248.70x = 8,932,278,806.96
  5. Step 5: Solve for x
    x = 8,932,278,806.96/123,248.70
  6. Step 6: Final answer
    x = 72,473.61

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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.