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Finding the Fourth Proportional to 200,449.20, 300,585.60 and 60,175.20

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Solution

The fourth proportional to 200,449.20, 300,585.60 and 60,175.20 is: 90,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,449.20 : 300,585.60 = 60,175.20 : x
  2. Step 2: Convert to fraction form
    200,449.20/300,585.60 = 60,175.20/x
  3. Step 3: Cross multiply
    200,449.20x = 300,585.60 × 60,175.20
  4. Step 4: Simplify right side
    200,449.20x = 18,087,798,597.12
  5. Step 5: Solve for x
    x = 18,087,798,597.12/200,449.20
  6. Step 6: Final answer
    x = 90,236.32

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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.