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Finding the Fourth Proportional to 67,158.64, 100,757.44 and 27,708.40

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Solution

The fourth proportional to 67,158.64, 100,757.44 and 27,708.40 is: 41,570.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,158.64 : 100,757.44 = 27,708.40 : x
  2. Step 2: Convert to fraction form
    67,158.64/100,757.44 = 27,708.40/x
  3. Step 3: Cross multiply
    67,158.64x = 100,757.44 × 27,708.40
  4. Step 4: Simplify right side
    67,158.64x = 2,791,827,450.50
  5. Step 5: Solve for x
    x = 2,791,827,450.50/67,158.64
  6. Step 6: Final answer
    x = 41,570.64

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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.