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Finding the Fourth Proportional to 249,472.14, 344,635.83 and 215,879.82

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Solution

The fourth proportional to 249,472.14, 344,635.83 and 215,879.82 is: 298,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,472.14 : 344,635.83 = 215,879.82 : x
  2. Step 2: Convert to fraction form
    249,472.14/344,635.83 = 215,879.82/x
  3. Step 3: Cross multiply
    249,472.14x = 344,635.83 × 215,879.82
  4. Step 4: Simplify right side
    249,472.14x = 74,399,920,945.95
  5. Step 5: Solve for x
    x = 74,399,920,945.95/249,472.14
  6. Step 6: Final answer
    x = 298,229.38

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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.