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Finding the Fourth Proportional to 125,668.86, 173,418.62 and 69,079.83

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Solution

The fourth proportional to 125,668.86, 173,418.62 and 69,079.83 is: 95,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,668.86 : 173,418.62 = 69,079.83 : x
  2. Step 2: Convert to fraction form
    125,668.86/173,418.62 = 69,079.83/x
  3. Step 3: Cross multiply
    125,668.86x = 173,418.62 × 69,079.83
  4. Step 4: Simplify right side
    125,668.86x = 11,979,728,094.04
  5. Step 5: Solve for x
    x = 11,979,728,094.04/125,668.86
  6. Step 6: Final answer
    x = 95,327.74

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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.