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Finding the Fourth Proportional to 317,200.53, 437,759.90 and 181,231.57

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Solution

The fourth proportional to 317,200.53, 437,759.90 and 181,231.57 is: 250,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,200.53 : 437,759.90 = 181,231.57 : x
  2. Step 2: Convert to fraction form
    317,200.53/437,759.90 = 181,231.57/x
  3. Step 3: Cross multiply
    317,200.53x = 437,759.90 × 181,231.57
  4. Step 4: Simplify right side
    317,200.53x = 79,335,913,960.04
  5. Step 5: Solve for x
    x = 79,335,913,960.04/317,200.53
  6. Step 6: Final answer
    x = 250,112.80

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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.