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Finding the Fourth Proportional to 113,213.20, 169,819.80 and 60,725.20

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Solution

The fourth proportional to 113,213.20, 169,819.80 and 60,725.20 is: 91,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,213.20 : 169,819.80 = 60,725.20 : x
  2. Step 2: Convert to fraction form
    113,213.20/169,819.80 = 60,725.20/x
  3. Step 3: Cross multiply
    113,213.20x = 169,819.80 × 60,725.20
  4. Step 4: Simplify right side
    113,213.20x = 10,312,341,318.96
  5. Step 5: Solve for x
    x = 10,312,341,318.96/113,213.20
  6. Step 6: Final answer
    x = 91,087.80

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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.