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Finding the Fourth Proportional to 122,159.71, 168,568.99 and 68,433.33

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Solution

The fourth proportional to 122,159.71, 168,568.99 and 68,433.33 is: 94,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,159.71 : 168,568.99 = 68,433.33 : x
  2. Step 2: Convert to fraction form
    122,159.71/168,568.99 = 68,433.33/x
  3. Step 3: Cross multiply
    122,159.71x = 168,568.99 × 68,433.33
  4. Step 4: Simplify right side
    122,159.71x = 11,535,737,149.35
  5. Step 5: Solve for x
    x = 11,535,737,149.35/122,159.71
  6. Step 6: Final answer
    x = 94,431.60

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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.