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Finding the Fourth Proportional to 173,863.13, 260,850.63 and 79,127.15

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Solution

The fourth proportional to 173,863.13, 260,850.63 and 79,127.15 is: 118,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,863.13 : 260,850.63 = 79,127.15 : x
  2. Step 2: Convert to fraction form
    173,863.13/260,850.63 = 79,127.15/x
  3. Step 3: Cross multiply
    173,863.13x = 260,850.63 × 79,127.15
  4. Step 4: Simplify right side
    173,863.13x = 20,640,366,927.60
  5. Step 5: Solve for x
    x = 20,640,366,927.60/173,863.13
  6. Step 6: Final answer
    x = 118,716.18

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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.