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Finding the Fourth Proportional to 60,908.67, 84,023.19 and 40,766.40

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Solution

The fourth proportional to 60,908.67, 84,023.19 and 40,766.40 is: 56,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,908.67 : 84,023.19 = 40,766.40 : x
  2. Step 2: Convert to fraction form
    60,908.67/84,023.19 = 40,766.40/x
  3. Step 3: Cross multiply
    60,908.67x = 84,023.19 × 40,766.40
  4. Step 4: Simplify right side
    60,908.67x = 3,425,322,972.82
  5. Step 5: Solve for x
    x = 3,425,322,972.82/60,908.67
  6. Step 6: Final answer
    x = 56,237.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.