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Finding the Fourth Proportional to 360,206.10, 540,309.15 and 135,616.92

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Solution

The fourth proportional to 360,206.10, 540,309.15 and 135,616.92 is: 203,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,206.10 : 540,309.15 = 135,616.92 : x
  2. Step 2: Convert to fraction form
    360,206.10/540,309.15 = 135,616.92/x
  3. Step 3: Cross multiply
    360,206.10x = 540,309.15 × 135,616.92
  4. Step 4: Simplify right side
    360,206.10x = 73,275,062,770.82
  5. Step 5: Solve for x
    x = 73,275,062,770.82/360,206.10
  6. Step 6: Final answer
    x = 203,425.38

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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.