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Finding the Fourth Proportional to 173,310.40, 259,965.60 and 84,736.90

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Solution

The fourth proportional to 173,310.40, 259,965.60 and 84,736.90 is: 127,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,310.40 : 259,965.60 = 84,736.90 : x
  2. Step 2: Convert to fraction form
    173,310.40/259,965.60 = 84,736.90/x
  3. Step 3: Cross multiply
    173,310.40x = 259,965.60 × 84,736.90
  4. Step 4: Simplify right side
    173,310.40x = 22,028,679,050.64
  5. Step 5: Solve for x
    x = 22,028,679,050.64/173,310.40
  6. Step 6: Final answer
    x = 127,105.35

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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.