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Finding the Fourth Proportional to 68,829.60, 103,340.40 and 44,023.20

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Solution

The fourth proportional to 68,829.60, 103,340.40 and 44,023.20 is: 66,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829.60 : 103,340.40 = 44,023.20 : x
  2. Step 2: Convert to fraction form
    68,829.60/103,340.40 = 44,023.20/x
  3. Step 3: Cross multiply
    68,829.60x = 103,340.40 × 44,023.20
  4. Step 4: Simplify right side
    68,829.60x = 4,549,375,097.28
  5. Step 5: Solve for x
    x = 4,549,375,097.28/68,829.60
  6. Step 6: Final answer
    x = 66,096.20

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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.