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Finding the Fourth Proportional to 173,101.80, 259,701.30 and 84,358.20

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Solution

The fourth proportional to 173,101.80, 259,701.30 and 84,358.20 is: 126,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,101.80 : 259,701.30 = 84,358.20 : x
  2. Step 2: Convert to fraction form
    173,101.80/259,701.30 = 84,358.20/x
  3. Step 3: Cross multiply
    173,101.80x = 259,701.30 × 84,358.20
  4. Step 4: Simplify right side
    173,101.80x = 21,907,934,205.66
  5. Step 5: Solve for x
    x = 21,907,934,205.66/173,101.80
  6. Step 6: Final answer
    x = 126,560.98

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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.