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Finding the Fourth Proportional to 269,755.65, 372,271.82 and 147,255.30

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Solution

The fourth proportional to 269,755.65, 372,271.82 and 147,255.30 is: 203,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,755.65 : 372,271.82 = 147,255.30 : x
  2. Step 2: Convert to fraction form
    269,755.65/372,271.82 = 147,255.30/x
  3. Step 3: Cross multiply
    269,755.65x = 372,271.82 × 147,255.30
  4. Step 4: Simplify right side
    269,755.65x = 54,818,997,799.37
  5. Step 5: Solve for x
    x = 54,818,997,799.37/269,755.65
  6. Step 6: Final answer
    x = 203,217.24

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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.