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Finding the Fourth Proportional to 170,778.80, 256,168.20 and 114,645.80

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Solution

The fourth proportional to 170,778.80, 256,168.20 and 114,645.80 is: 171,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,778.80 : 256,168.20 = 114,645.80 : x
  2. Step 2: Convert to fraction form
    170,778.80/256,168.20 = 114,645.80/x
  3. Step 3: Cross multiply
    170,778.80x = 256,168.20 × 114,645.80
  4. Step 4: Simplify right side
    170,778.80x = 29,368,608,223.56
  5. Step 5: Solve for x
    x = 29,368,608,223.56/170,778.80
  6. Step 6: Final answer
    x = 171,968.70

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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.