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Finding the Fourth Proportional to 125,657.55, 173,405.48 and 69,067.71

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Solution

The fourth proportional to 125,657.55, 173,405.48 and 69,067.71 is: 95,312.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,657.55 : 173,405.48 = 69,067.71 : x
  2. Step 2: Convert to fraction form
    125,657.55/173,405.48 = 69,067.71/x
  3. Step 3: Cross multiply
    125,657.55x = 173,405.48 × 69,067.71
  4. Step 4: Simplify right side
    125,657.55x = 11,976,719,059.71
  5. Step 5: Solve for x
    x = 11,976,719,059.71/125,657.55
  6. Step 6: Final answer
    x = 95,312.37

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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.