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Finding the Fourth Proportional to 171,121.88, 256,708.20 and 58,831.04

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Solution

The fourth proportional to 171,121.88, 256,708.20 and 58,831.04 is: 88,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,121.88 : 256,708.20 = 58,831.04 : x
  2. Step 2: Convert to fraction form
    171,121.88/256,708.20 = 58,831.04/x
  3. Step 3: Cross multiply
    171,121.88x = 256,708.20 × 58,831.04
  4. Step 4: Simplify right side
    171,121.88x = 15,102,410,382.53
  5. Step 5: Solve for x
    x = 15,102,410,382.53/171,121.88
  6. Step 6: Final answer
    x = 88,255.29

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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.