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Finding the Fourth Proportional to 125,760.78, 173,546.22 and 69,172.14

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Solution

The fourth proportional to 125,760.78, 173,546.22 and 69,172.14 is: 95,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,760.78 : 173,546.22 = 69,172.14 : x
  2. Step 2: Convert to fraction form
    125,760.78/173,546.22 = 69,172.14/x
  3. Step 3: Cross multiply
    125,760.78x = 173,546.22 × 69,172.14
  4. Step 4: Simplify right side
    125,760.78x = 12,004,563,426.31
  5. Step 5: Solve for x
    x = 12,004,563,426.31/125,760.78
  6. Step 6: Final answer
    x = 95,455.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.