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Finding the Fourth Proportional to 125,656.45, 173,405.88 and 69,067.82

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Solution

The fourth proportional to 125,656.45, 173,405.88 and 69,067.82 is: 95,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,656.45 : 173,405.88 = 69,067.82 : x
  2. Step 2: Convert to fraction form
    125,656.45/173,405.88 = 69,067.82/x
  3. Step 3: Cross multiply
    125,656.45x = 173,405.88 × 69,067.82
  4. Step 4: Simplify right side
    125,656.45x = 11,976,766,106.78
  5. Step 5: Solve for x
    x = 11,976,766,106.78/125,656.45
  6. Step 6: Final answer
    x = 95,313.58

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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.