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Finding the Fourth Proportional to 169,493.20, 254,231.70 and 57,162.40

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Solution

The fourth proportional to 169,493.20, 254,231.70 and 57,162.40 is: 85,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,493.20 : 254,231.70 = 57,162.40 : x
  2. Step 2: Convert to fraction form
    169,493.20/254,231.70 = 57,162.40/x
  3. Step 3: Cross multiply
    169,493.20x = 254,231.70 × 57,162.40
  4. Step 4: Simplify right side
    169,493.20x = 14,532,494,128.08
  5. Step 5: Solve for x
    x = 14,532,494,128.08/169,493.20
  6. Step 6: Final answer
    x = 85,740.87

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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.