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Finding the Fourth Proportional to 173,628.20, 260,471.10 and 68,450.60

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Solution

The fourth proportional to 173,628.20, 260,471.10 and 68,450.60 is: 102,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,628.20 : 260,471.10 = 68,450.60 : x
  2. Step 2: Convert to fraction form
    173,628.20/260,471.10 = 68,450.60/x
  3. Step 3: Cross multiply
    173,628.20x = 260,471.10 × 68,450.60
  4. Step 4: Simplify right side
    173,628.20x = 17,829,403,077.66
  5. Step 5: Solve for x
    x = 17,829,403,077.66/173,628.20
  6. Step 6: Final answer
    x = 102,687.25

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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.