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Finding the Fourth Proportional to 171,043.70, 256,565.55 and 168,127.70

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Solution

The fourth proportional to 171,043.70, 256,565.55 and 168,127.70 is: 252,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,043.70 : 256,565.55 = 168,127.70 : x
  2. Step 2: Convert to fraction form
    171,043.70/256,565.55 = 168,127.70/x
  3. Step 3: Cross multiply
    171,043.70x = 256,565.55 × 168,127.70
  4. Step 4: Simplify right side
    171,043.70x = 43,135,775,820.74
  5. Step 5: Solve for x
    x = 43,135,775,820.74/171,043.70
  6. Step 6: Final answer
    x = 252,191.55

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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.