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Finding the Fourth Proportional to 122,446.60, 168,954.96 and 68,733.88

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Solution

The fourth proportional to 122,446.60, 168,954.96 and 68,733.88 is: 94,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,446.60 : 168,954.96 = 68,733.88 : x
  2. Step 2: Convert to fraction form
    122,446.60/168,954.96 = 68,733.88/x
  3. Step 3: Cross multiply
    122,446.60x = 168,954.96 × 68,733.88
  4. Step 4: Simplify right side
    122,446.60x = 11,612,929,946.04
  5. Step 5: Solve for x
    x = 11,612,929,946.04/122,446.60
  6. Step 6: Final answer
    x = 94,840.77

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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.