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Finding the Fourth Proportional to 122,597.16, 169,165.77 and 68,871.96

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Solution

The fourth proportional to 122,597.16, 169,165.77 and 68,871.96 is: 95,033.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,597.16 : 169,165.77 = 68,871.96 : x
  2. Step 2: Convert to fraction form
    122,597.16/169,165.77 = 68,871.96/x
  3. Step 3: Cross multiply
    122,597.16x = 169,165.77 × 68,871.96
  4. Step 4: Simplify right side
    122,597.16x = 11,650,778,144.81
  5. Step 5: Solve for x
    x = 11,650,778,144.81/122,597.16
  6. Step 6: Final answer
    x = 95,033.02

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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.