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Finding the Fourth Proportional to 122,466.51, 169,003.10 and 68,751.52

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Solution

The fourth proportional to 122,466.51, 169,003.10 and 68,751.52 is: 94,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,466.51 : 169,003.10 = 68,751.52 : x
  2. Step 2: Convert to fraction form
    122,466.51/169,003.10 = 68,751.52/x
  3. Step 3: Cross multiply
    122,466.51x = 169,003.10 × 68,751.52
  4. Step 4: Simplify right side
    122,466.51x = 11,619,219,759.08
  5. Step 5: Solve for x
    x = 11,619,219,759.08/122,466.51
  6. Step 6: Final answer
    x = 94,876.71

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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.