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Finding the Fourth Proportional to 71,356.80, 107,002.80 and 26,968.80

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Solution

The fourth proportional to 71,356.80, 107,002.80 and 26,968.80 is: 40,440.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,356.80 : 107,002.80 = 26,968.80 : x
  2. Step 2: Convert to fraction form
    71,356.80/107,002.80 = 26,968.80/x
  3. Step 3: Cross multiply
    71,356.80x = 107,002.80 × 26,968.80
  4. Step 4: Simplify right side
    71,356.80x = 2,885,737,112.64
  5. Step 5: Solve for x
    x = 2,885,737,112.64/71,356.80
  6. Step 6: Final answer
    x = 40,440.95

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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.