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Finding the Fourth Proportional to 317,175.68, 437,711.10 and 181,231.76

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Solution

The fourth proportional to 317,175.68, 437,711.10 and 181,231.76 is: 250,104.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,175.68 : 437,711.10 = 181,231.76 : x
  2. Step 2: Convert to fraction form
    317,175.68/437,711.10 = 181,231.76/x
  3. Step 3: Cross multiply
    317,175.68x = 437,711.10 × 181,231.76
  4. Step 4: Simplify right side
    317,175.68x = 79,327,153,024.54
  5. Step 5: Solve for x
    x = 79,327,153,024.54/317,175.68
  6. Step 6: Final answer
    x = 250,104.78

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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.