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Finding the Fourth Proportional to 159,493.34, 220,105.80 and 91,522.75

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Solution

The fourth proportional to 159,493.34, 220,105.80 and 91,522.75 is: 126,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,493.34 : 220,105.80 = 91,522.75 : x
  2. Step 2: Convert to fraction form
    159,493.34/220,105.80 = 91,522.75/x
  3. Step 3: Cross multiply
    159,493.34x = 220,105.80 × 91,522.75
  4. Step 4: Simplify right side
    159,493.34x = 20,144,688,382.08
  5. Step 5: Solve for x
    x = 20,144,688,382.08/159,493.34
  6. Step 6: Final answer
    x = 126,304.26

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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.