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Finding the Fourth Proportional to 221,517.56, 332,373.78 and 116,312.12

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Solution

The fourth proportional to 221,517.56, 332,373.78 and 116,312.12 is: 174,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,517.56 : 332,373.78 = 116,312.12 : x
  2. Step 2: Convert to fraction form
    221,517.56/332,373.78 = 116,312.12/x
  3. Step 3: Cross multiply
    221,517.56x = 332,373.78 × 116,312.12
  4. Step 4: Simplify right side
    221,517.56x = 38,659,098,984.21
  5. Step 5: Solve for x
    x = 38,659,098,984.21/221,517.56
  6. Step 6: Final answer
    x = 174,519.34

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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.