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Finding the Fourth Proportional to 200,312.72, 300,449.52 and 52,568.72

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Solution

The fourth proportional to 200,312.72, 300,449.52 and 52,568.72 is: 78,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,312.72 : 300,449.52 = 52,568.72 : x
  2. Step 2: Convert to fraction form
    200,312.72/300,449.52 = 52,568.72/x
  3. Step 3: Cross multiply
    200,312.72x = 300,449.52 × 52,568.72
  4. Step 4: Simplify right side
    200,312.72x = 15,794,246,691.01
  5. Step 5: Solve for x
    x = 15,794,246,691.01/200,312.72
  6. Step 6: Final answer
    x = 78,847.95

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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.