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Finding the Fourth Proportional to 122,234.40, 168,679.53 and 68,522.49

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Solution

The fourth proportional to 122,234.40, 168,679.53 and 68,522.49 is: 94,558.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,234.40 : 168,679.53 = 68,522.49 : x
  2. Step 2: Convert to fraction form
    122,234.40/168,679.53 = 68,522.49/x
  3. Step 3: Cross multiply
    122,234.40x = 168,679.53 × 68,522.49
  4. Step 4: Simplify right side
    122,234.40x = 11,558,341,407.63
  5. Step 5: Solve for x
    x = 11,558,341,407.63/122,234.40
  6. Step 6: Final answer
    x = 94,558.83

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1.5x scale

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.