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Finding the Fourth Proportional to 89,052.54, 122,644.71 and 68,834.94

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Solution

The fourth proportional to 89,052.54, 122,644.71 and 68,834.94 is: 94,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,052.54 : 122,644.71 = 68,834.94 : x
  2. Step 2: Convert to fraction form
    89,052.54/122,644.71 = 68,834.94/x
  3. Step 3: Cross multiply
    89,052.54x = 122,644.71 × 68,834.94
  4. Step 4: Simplify right side
    89,052.54x = 8,442,241,254.17
  5. Step 5: Solve for x
    x = 8,442,241,254.17/89,052.54
  6. Step 6: Final answer
    x = 94,800.68

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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.