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Finding the Fourth Proportional to 60,170.18, 90,338.08 and 30,608

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Solution

The fourth proportional to 60,170.18, 90,338.08 and 30,608 is: 45,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,170.18 : 90,338.08 = 30,608 : x
  2. Step 2: Convert to fraction form
    60,170.18/90,338.08 = 30,608/x
  3. Step 3: Cross multiply
    60,170.18x = 90,338.08 × 30,608
  4. Step 4: Simplify right side
    60,170.18x = 2,765,067,952.64
  5. Step 5: Solve for x
    x = 2,765,067,952.64/60,170.18
  6. Step 6: Final answer
    x = 45,954.12

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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.