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Finding the Fourth Proportional to 122,958.68, 169,683.59 and 69,244.61

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Solution

The fourth proportional to 122,958.68, 169,683.59 and 69,244.61 is: 95,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,958.68 : 169,683.59 = 69,244.61 : x
  2. Step 2: Convert to fraction form
    122,958.68/169,683.59 = 69,244.61/x
  3. Step 3: Cross multiply
    122,958.68x = 169,683.59 × 69,244.61
  4. Step 4: Simplify right side
    122,958.68x = 11,749,673,337.64
  5. Step 5: Solve for x
    x = 11,749,673,337.64/122,958.68
  6. Step 6: Final answer
    x = 95,557.90

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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.