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Finding the Fourth Proportional to 125,913.85, 173,760.77 and 69,325.22

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Solution

The fourth proportional to 125,913.85, 173,760.77 and 69,325.22 is: 95,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,913.85 : 173,760.77 = 69,325.22 : x
  2. Step 2: Convert to fraction form
    125,913.85/173,760.77 = 69,325.22/x
  3. Step 3: Cross multiply
    125,913.85x = 173,760.77 × 69,325.22
  4. Step 4: Simplify right side
    125,913.85x = 12,046,004,215.33
  5. Step 5: Solve for x
    x = 12,046,004,215.33/125,913.85
  6. Step 6: Final answer
    x = 95,668.62

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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.