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Finding the Fourth Proportional to 80,480.78, 111,058.26 and 44,670.80

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Solution

The fourth proportional to 80,480.78, 111,058.26 and 44,670.80 is: 61,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,480.78 : 111,058.26 = 44,670.80 : x
  2. Step 2: Convert to fraction form
    80,480.78/111,058.26 = 44,670.80/x
  3. Step 3: Cross multiply
    80,480.78x = 111,058.26 × 44,670.80
  4. Step 4: Simplify right side
    80,480.78x = 4,961,061,320.81
  5. Step 5: Solve for x
    x = 4,961,061,320.81/80,480.78
  6. Step 6: Final answer
    x = 61,642.81

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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.