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Finding the Fourth Proportional to 269,899.50, 372,494.12 and 156,722.25

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Solution

The fourth proportional to 269,899.50, 372,494.12 and 156,722.25 is: 216,295.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,899.50 : 372,494.12 = 156,722.25 : x
  2. Step 2: Convert to fraction form
    269,899.50/372,494.12 = 156,722.25/x
  3. Step 3: Cross multiply
    269,899.50x = 372,494.12 × 156,722.25
  4. Step 4: Simplify right side
    269,899.50x = 58,378,115,814.56
  5. Step 5: Solve for x
    x = 58,378,115,814.56/269,899.50
  6. Step 6: Final answer
    x = 216,295.75

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Similar ratio
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1.5x scale

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.