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Finding the Fourth Proportional to 178,531.80, 267,279.30 and 173,347.80

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Solution

The fourth proportional to 178,531.80, 267,279.30 and 173,347.80 is: 259,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,531.80 : 267,279.30 = 173,347.80 : x
  2. Step 2: Convert to fraction form
    178,531.80/267,279.30 = 173,347.80/x
  3. Step 3: Cross multiply
    178,531.80x = 267,279.30 × 173,347.80
  4. Step 4: Simplify right side
    178,531.80x = 46,332,278,640.54
  5. Step 5: Solve for x
    x = 46,332,278,640.54/178,531.80
  6. Step 6: Final answer
    x = 259,518.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.