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Finding the Fourth Proportional to 45,374.10, 68,061.15 and 44,499.30

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Solution

The fourth proportional to 45,374.10, 68,061.15 and 44,499.30 is: 66,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,374.10 : 68,061.15 = 44,499.30 : x
  2. Step 2: Convert to fraction form
    45,374.10/68,061.15 = 44,499.30/x
  3. Step 3: Cross multiply
    45,374.10x = 68,061.15 × 44,499.30
  4. Step 4: Simplify right side
    45,374.10x = 3,028,673,532.20
  5. Step 5: Solve for x
    x = 3,028,673,532.20/45,374.10
  6. Step 6: Final answer
    x = 66,748.95

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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.