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Finding the Fourth Proportional to 68,974.62, 103,466.56 and 26,851.98

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Solution

The fourth proportional to 68,974.62, 103,466.56 and 26,851.98 is: 40,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,974.62 : 103,466.56 = 26,851.98 : x
  2. Step 2: Convert to fraction form
    68,974.62/103,466.56 = 26,851.98/x
  3. Step 3: Cross multiply
    68,974.62x = 103,466.56 × 26,851.98
  4. Step 4: Simplify right side
    68,974.62x = 2,778,281,999.79
  5. Step 5: Solve for x
    x = 2,778,281,999.79/68,974.62
  6. Step 6: Final answer
    x = 40,279.77

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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.