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Finding the Fourth Proportional to 268,940.70, 371,135.16 and 148,079.52

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Solution

The fourth proportional to 268,940.70, 371,135.16 and 148,079.52 is: 204,348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,940.70 : 371,135.16 = 148,079.52 : x
  2. Step 2: Convert to fraction form
    268,940.70/371,135.16 = 148,079.52/x
  3. Step 3: Cross multiply
    268,940.70x = 371,135.16 × 148,079.52
  4. Step 4: Simplify right side
    268,940.70x = 54,957,516,347.92
  5. Step 5: Solve for x
    x = 54,957,516,347.92/268,940.70
  6. Step 6: Final answer
    x = 204,348.08

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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.