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Finding the Fourth Proportional to 122,167.59, 168,575.61 and 68,439.39

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Solution

The fourth proportional to 122,167.59, 168,575.61 and 68,439.39 is: 94,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,167.59 : 168,575.61 = 68,439.39 : x
  2. Step 2: Convert to fraction form
    122,167.59/168,575.61 = 68,439.39/x
  3. Step 3: Cross multiply
    122,167.59x = 168,575.61 × 68,439.39
  4. Step 4: Simplify right side
    122,167.59x = 11,537,211,917.28
  5. Step 5: Solve for x
    x = 11,537,211,917.28/122,167.59
  6. Step 6: Final answer
    x = 94,437.58

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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.