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Finding the Fourth Proportional to 269,648.76, 372,114.86 and 148,789.95

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Solution

The fourth proportional to 269,648.76, 372,114.86 and 148,789.95 is: 205,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,648.76 : 372,114.86 = 148,789.95 : x
  2. Step 2: Convert to fraction form
    269,648.76/372,114.86 = 148,789.95/x
  3. Step 3: Cross multiply
    269,648.76x = 372,114.86 × 148,789.95
  4. Step 4: Simplify right side
    269,648.76x = 55,366,950,669.71
  5. Step 5: Solve for x
    x = 55,366,950,669.71/269,648.76
  6. Step 6: Final answer
    x = 205,329.89

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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.