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Finding the Fourth Proportional to 89,104.59, 122,817.87 and 71,167.95

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Solution

The fourth proportional to 89,104.59, 122,817.87 and 71,167.95 is: 98,094.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,104.59 : 122,817.87 = 71,167.95 : x
  2. Step 2: Convert to fraction form
    89,104.59/122,817.87 = 71,167.95/x
  3. Step 3: Cross multiply
    89,104.59x = 122,817.87 × 71,167.95
  4. Step 4: Simplify right side
    89,104.59x = 8,740,696,031.27
  5. Step 5: Solve for x
    x = 8,740,696,031.27/89,104.59
  6. Step 6: Final answer
    x = 98,094.79

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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.