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Finding the Fourth Proportional to 132,713.34, 198,912.25 and 92,515.06

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Solution

The fourth proportional to 132,713.34, 198,912.25 and 92,515.06 is: 138,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,713.34 : 198,912.25 = 92,515.06 : x
  2. Step 2: Convert to fraction form
    132,713.34/198,912.25 = 92,515.06/x
  3. Step 3: Cross multiply
    132,713.34x = 198,912.25 × 92,515.06
  4. Step 4: Simplify right side
    132,713.34x = 18,402,378,743.49
  5. Step 5: Solve for x
    x = 18,402,378,743.49/132,713.34
  6. Step 6: Final answer
    x = 138,662.61

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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.