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Finding the Fourth Proportional to 372,808.70, 514,481.88 and 203,042.70

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Solution

The fourth proportional to 372,808.70, 514,481.88 and 203,042.70 is: 280,202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,808.70 : 514,481.88 = 203,042.70 : x
  2. Step 2: Convert to fraction form
    372,808.70/514,481.88 = 203,042.70/x
  3. Step 3: Cross multiply
    372,808.70x = 514,481.88 × 203,042.70
  4. Step 4: Simplify right side
    372,808.70x = 104,461,790,016.28
  5. Step 5: Solve for x
    x = 104,461,790,016.28/372,808.70
  6. Step 6: Final answer
    x = 280,202.13

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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.