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Finding the Fourth Proportional to 125,657.56, 173,405.10 and 69,067.72

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Solution

The fourth proportional to 125,657.56, 173,405.10 and 69,067.72 is: 95,312.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,657.56 : 173,405.10 = 69,067.72 : x
  2. Step 2: Convert to fraction form
    125,657.56/173,405.10 = 69,067.72/x
  3. Step 3: Cross multiply
    125,657.56x = 173,405.10 × 69,067.72
  4. Step 4: Simplify right side
    125,657.56x = 11,976,694,893.37
  5. Step 5: Solve for x
    x = 11,976,694,893.37/125,657.56
  6. Step 6: Final answer
    x = 95,312.17

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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.