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Finding the Fourth Proportional to 171,119.18, 256,722.52 and 71,246.18

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Solution

The fourth proportional to 171,119.18, 256,722.52 and 71,246.18 is: 106,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,119.18 : 256,722.52 = 71,246.18 : x
  2. Step 2: Convert to fraction form
    171,119.18/256,722.52 = 71,246.18/x
  3. Step 3: Cross multiply
    171,119.18x = 256,722.52 × 71,246.18
  4. Step 4: Simplify right side
    171,119.18x = 18,290,498,869.97
  5. Step 5: Solve for x
    x = 18,290,498,869.97/171,119.18
  6. Step 6: Final answer
    x = 106,887.49

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1.5x scale

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.