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Finding the Fourth Proportional to 125,847.94, 173,670.45 and 68,487.28

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Solution

The fourth proportional to 125,847.94, 173,670.45 and 68,487.28 is: 94,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,847.94 : 173,670.45 = 68,487.28 : x
  2. Step 2: Convert to fraction form
    125,847.94/173,670.45 = 68,487.28/x
  3. Step 3: Cross multiply
    125,847.94x = 173,670.45 × 68,487.28
  4. Step 4: Simplify right side
    125,847.94x = 11,894,216,736.88
  5. Step 5: Solve for x
    x = 11,894,216,736.88/125,847.94
  6. Step 6: Final answer
    x = 94,512.61

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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.