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Finding the Fourth Proportional to 173,228.25, 239,055 and 97,781.61

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Solution

The fourth proportional to 173,228.25, 239,055 and 97,781.61 is: 134,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,228.25 : 239,055 = 97,781.61 : x
  2. Step 2: Convert to fraction form
    173,228.25/239,055 = 97,781.61/x
  3. Step 3: Cross multiply
    173,228.25x = 239,055 × 97,781.61
  4. Step 4: Simplify right side
    173,228.25x = 23,375,182,778.55
  5. Step 5: Solve for x
    x = 23,375,182,778.55/173,228.25
  6. Step 6: Final answer
    x = 134,938.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.