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Finding the Fourth Proportional to 166,887.54, 230,310.54 and 91,436.04

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Solution

The fourth proportional to 166,887.54, 230,310.54 and 91,436.04 is: 126,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,887.54 : 230,310.54 = 91,436.04 : x
  2. Step 2: Convert to fraction form
    166,887.54/230,310.54 = 91,436.04/x
  3. Step 3: Cross multiply
    166,887.54x = 230,310.54 × 91,436.04
  4. Step 4: Simplify right side
    166,887.54x = 21,058,683,747.86
  5. Step 5: Solve for x
    x = 21,058,683,747.86/166,887.54
  6. Step 6: Final answer
    x = 126,184.88

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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.