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Finding the Fourth Proportional to 68,972.76, 103,372.56 and 29,483.44

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Solution

The fourth proportional to 68,972.76, 103,372.56 and 29,483.44 is: 44,188.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,972.76 : 103,372.56 = 29,483.44 : x
  2. Step 2: Convert to fraction form
    68,972.76/103,372.56 = 29,483.44/x
  3. Step 3: Cross multiply
    68,972.76x = 103,372.56 × 29,483.44
  4. Step 4: Simplify right side
    68,972.76x = 3,047,778,670.41
  5. Step 5: Solve for x
    x = 3,047,778,670.41/68,972.76
  6. Step 6: Final answer
    x = 44,188.15

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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.