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Finding the Fourth Proportional to 269,788.66, 372,289.26 and 148,910.56

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Solution

The fourth proportional to 269,788.66, 372,289.26 and 148,910.56 is: 205,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,788.66 : 372,289.26 = 148,910.56 : x
  2. Step 2: Convert to fraction form
    269,788.66/372,289.26 = 148,910.56/x
  3. Step 3: Cross multiply
    269,788.66x = 372,289.26 × 148,910.56
  4. Step 4: Simplify right side
    269,788.66x = 55,437,802,188.59
  5. Step 5: Solve for x
    x = 55,437,802,188.59/269,788.66
  6. Step 6: Final answer
    x = 205,486.04

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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.