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Finding the Fourth Proportional to 170,854.44, 256,302.18 and 71,082.15

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Solution

The fourth proportional to 170,854.44, 256,302.18 and 71,082.15 is: 106,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,854.44 : 256,302.18 = 71,082.15 : x
  2. Step 2: Convert to fraction form
    170,854.44/256,302.18 = 71,082.15/x
  3. Step 3: Cross multiply
    170,854.44x = 256,302.18 × 71,082.15
  4. Step 4: Simplify right side
    170,854.44x = 18,218,510,004.09
  5. Step 5: Solve for x
    x = 18,218,510,004.09/170,854.44
  6. Step 6: Final answer
    x = 106,631.76

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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.