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Finding the Fourth Proportional to 79,531.54, 119,311.74 and 32,758.90

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Solution

The fourth proportional to 79,531.54, 119,311.74 and 32,758.90 is: 49,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,531.54 : 119,311.74 = 32,758.90 : x
  2. Step 2: Convert to fraction form
    79,531.54/119,311.74 = 32,758.90/x
  3. Step 3: Cross multiply
    79,531.54x = 119,311.74 × 32,758.90
  4. Step 4: Simplify right side
    79,531.54x = 3,908,521,359.49
  5. Step 5: Solve for x
    x = 3,908,521,359.49/79,531.54
  6. Step 6: Final answer
    x = 49,144.29

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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.