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Finding the Fourth Proportional to 101,927.46, 140,680.60 and 58,908.80

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Solution

The fourth proportional to 101,927.46, 140,680.60 and 58,908.80 is: 81,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,927.46 : 140,680.60 = 58,908.80 : x
  2. Step 2: Convert to fraction form
    101,927.46/140,680.60 = 58,908.80/x
  3. Step 3: Cross multiply
    101,927.46x = 140,680.60 × 58,908.80
  4. Step 4: Simplify right side
    101,927.46x = 8,287,325,329.28
  5. Step 5: Solve for x
    x = 8,287,325,329.28/101,927.46
  6. Step 6: Final answer
    x = 81,306.11

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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.