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Finding the Fourth Proportional to 269,328, 371,672.52 and 148,471.20

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Solution

The fourth proportional to 269,328, 371,672.52 and 148,471.20 is: 204,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,328 : 371,672.52 = 148,471.20 : x
  2. Step 2: Convert to fraction form
    269,328/371,672.52 = 148,471.20/x
  3. Step 3: Cross multiply
    269,328x = 371,672.52 × 148,471.20
  4. Step 4: Simplify right side
    269,328x = 55,182,665,051.42
  5. Step 5: Solve for x
    x = 55,182,665,051.42/269,328
  6. Step 6: Final answer
    x = 204,890.19

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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.