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Finding the Fourth Proportional to 125,165.44, 172,727.57 and 67,805.86

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Solution

The fourth proportional to 125,165.44, 172,727.57 and 67,805.86 is: 93,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.44 : 172,727.57 = 67,805.86 : x
  2. Step 2: Convert to fraction form
    125,165.44/172,727.57 = 67,805.86/x
  3. Step 3: Cross multiply
    125,165.44x = 172,727.57 × 67,805.86
  4. Step 4: Simplify right side
    125,165.44x = 11,711,940,878.19
  5. Step 5: Solve for x
    x = 11,711,940,878.19/125,165.44
  6. Step 6: Final answer
    x = 93,571.68

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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.