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Finding the Fourth Proportional to 171,310.85, 256,964.78 and 133,902.35

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Solution

The fourth proportional to 171,310.85, 256,964.78 and 133,902.35 is: 200,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,310.85 : 256,964.78 = 133,902.35 : x
  2. Step 2: Convert to fraction form
    171,310.85/256,964.78 = 133,902.35/x
  3. Step 3: Cross multiply
    171,310.85x = 256,964.78 × 133,902.35
  4. Step 4: Simplify right side
    171,310.85x = 34,408,186,959.17
  5. Step 5: Solve for x
    x = 34,408,186,959.17/171,310.85
  6. Step 6: Final answer
    x = 200,852.36

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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.