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Finding the Fourth Proportional to 410,585.70, 615,643.38 and 126,202.26

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Solution

The fourth proportional to 410,585.70, 615,643.38 and 126,202.26 is: 189,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,585.70 : 615,643.38 = 126,202.26 : x
  2. Step 2: Convert to fraction form
    410,585.70/615,643.38 = 126,202.26/x
  3. Step 3: Cross multiply
    410,585.70x = 615,643.38 × 126,202.26
  4. Step 4: Simplify right side
    410,585.70x = 77,695,585,910.04
  5. Step 5: Solve for x
    x = 77,695,585,910.04/410,585.70
  6. Step 6: Final answer
    x = 189,231.11

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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.