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Finding the Fourth Proportional to 68,825.60, 103,334.40 and 44,019.20

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Solution

The fourth proportional to 68,825.60, 103,334.40 and 44,019.20 is: 66,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,825.60 : 103,334.40 = 44,019.20 : x
  2. Step 2: Convert to fraction form
    68,825.60/103,334.40 = 44,019.20/x
  3. Step 3: Cross multiply
    68,825.60x = 103,334.40 × 44,019.20
  4. Step 4: Simplify right side
    68,825.60x = 4,548,697,620.48
  5. Step 5: Solve for x
    x = 4,548,697,620.48/68,825.60
  6. Step 6: Final answer
    x = 66,090.20

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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.