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Finding the Fourth Proportional to 68,193.70, 94,081.84 and 68,088.57

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Solution

The fourth proportional to 68,193.70, 94,081.84 and 68,088.57 is: 93,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,193.70 : 94,081.84 = 68,088.57 : x
  2. Step 2: Convert to fraction form
    68,193.70/94,081.84 = 68,088.57/x
  3. Step 3: Cross multiply
    68,193.70x = 94,081.84 × 68,088.57
  4. Step 4: Simplify right side
    68,193.70x = 6,405,897,948.57
  5. Step 5: Solve for x
    x = 6,405,897,948.57/68,193.70
  6. Step 6: Final answer
    x = 93,936.80

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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.