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Finding the Fourth Proportional to 170,695.70, 256,043.55 and 149,959.70

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Solution

The fourth proportional to 170,695.70, 256,043.55 and 149,959.70 is: 224,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,695.70 : 256,043.55 = 149,959.70 : x
  2. Step 2: Convert to fraction form
    170,695.70/256,043.55 = 149,959.70/x
  3. Step 3: Cross multiply
    170,695.70x = 256,043.55 × 149,959.70
  4. Step 4: Simplify right side
    170,695.70x = 38,396,213,944.94
  5. Step 5: Solve for x
    x = 38,396,213,944.94/170,695.70
  6. Step 6: Final answer
    x = 224,939.55

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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.