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Finding the Fourth Proportional to 141,058.90, 194,661.26 and 80,630.84

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Solution

The fourth proportional to 141,058.90, 194,661.26 and 80,630.84 is: 111,270.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,058.90 : 194,661.26 = 80,630.84 : x
  2. Step 2: Convert to fraction form
    141,058.90/194,661.26 = 80,630.84/x
  3. Step 3: Cross multiply
    141,058.90x = 194,661.26 × 80,630.84
  4. Step 4: Simplify right side
    141,058.90x = 15,695,701,295.12
  5. Step 5: Solve for x
    x = 15,695,701,295.12/141,058.90
  6. Step 6: Final answer
    x = 111,270.55

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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.