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Finding the Fourth Proportional to 125,860.52, 173,690.76 and 68,503.60

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Solution

The fourth proportional to 125,860.52, 173,690.76 and 68,503.60 is: 94,536.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,860.52 : 173,690.76 = 68,503.60 : x
  2. Step 2: Convert to fraction form
    125,860.52/173,690.76 = 68,503.60/x
  3. Step 3: Cross multiply
    125,860.52x = 173,690.76 × 68,503.60
  4. Step 4: Simplify right side
    125,860.52x = 11,898,442,346.74
  5. Step 5: Solve for x
    x = 11,898,442,346.74/125,860.52
  6. Step 6: Final answer
    x = 94,536.73

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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.