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Finding the Fourth Proportional to 148,959.41, 205,630.25 and 88,549.61

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Solution

The fourth proportional to 148,959.41, 205,630.25 and 88,549.61 is: 122,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,959.41 : 205,630.25 = 88,549.61 : x
  2. Step 2: Convert to fraction form
    148,959.41/205,630.25 = 88,549.61/x
  3. Step 3: Cross multiply
    148,959.41x = 205,630.25 × 88,549.61
  4. Step 4: Simplify right side
    148,959.41x = 18,208,476,970.80
  5. Step 5: Solve for x
    x = 18,208,476,970.80/148,959.41
  6. Step 6: Final answer
    x = 122,237.85

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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.