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Finding the Fourth Proportional to 60,679.86, 90,954.03 and 31,057.08

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Solution

The fourth proportional to 60,679.86, 90,954.03 and 31,057.08 is: 46,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,679.86 : 90,954.03 = 31,057.08 : x
  2. Step 2: Convert to fraction form
    60,679.86/90,954.03 = 31,057.08/x
  3. Step 3: Cross multiply
    60,679.86x = 90,954.03 × 31,057.08
  4. Step 4: Simplify right side
    60,679.86x = 2,824,766,586.03
  5. Step 5: Solve for x
    x = 2,824,766,586.03/60,679.86
  6. Step 6: Final answer
    x = 46,551.96

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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.