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Finding the Fourth Proportional to 68,880.32, 103,320.48 and 27,327.32

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Solution

The fourth proportional to 68,880.32, 103,320.48 and 27,327.32 is: 40,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,880.32 : 103,320.48 = 27,327.32 : x
  2. Step 2: Convert to fraction form
    68,880.32/103,320.48 = 27,327.32/x
  3. Step 3: Cross multiply
    68,880.32x = 103,320.48 × 27,327.32
  4. Step 4: Simplify right side
    68,880.32x = 2,823,471,819.51
  5. Step 5: Solve for x
    x = 2,823,471,819.51/68,880.32
  6. Step 6: Final answer
    x = 40,990.98

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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.