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Finding the Fourth Proportional to 86,370.59, 129,555.90 and 33,743.18

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Solution

The fourth proportional to 86,370.59, 129,555.90 and 33,743.18 is: 50,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370.59 : 129,555.90 = 33,743.18 : x
  2. Step 2: Convert to fraction form
    86,370.59/129,555.90 = 33,743.18/x
  3. Step 3: Cross multiply
    86,370.59x = 129,555.90 × 33,743.18
  4. Step 4: Simplify right side
    86,370.59x = 4,371,628,377.65
  5. Step 5: Solve for x
    x = 4,371,628,377.65/86,370.59
  6. Step 6: Final answer
    x = 50,614.78

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Similar ratio
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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.