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Finding the Fourth Proportional to 173,385.44, 260,074.32 and 79,891.16

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Solution

The fourth proportional to 173,385.44, 260,074.32 and 79,891.16 is: 119,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,385.44 : 260,074.32 = 79,891.16 : x
  2. Step 2: Convert to fraction form
    173,385.44/260,074.32 = 79,891.16/x
  3. Step 3: Cross multiply
    173,385.44x = 260,074.32 × 79,891.16
  4. Step 4: Simplify right side
    173,385.44x = 20,777,639,111.01
  5. Step 5: Solve for x
    x = 20,777,639,111.01/173,385.44
  6. Step 6: Final answer
    x = 119,834.97

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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.