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Finding the Fourth Proportional to 97,286.91, 134,254.11 and 54,845.46

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Solution

The fourth proportional to 97,286.91, 134,254.11 and 54,845.46 is: 75,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,286.91 : 134,254.11 = 54,845.46 : x
  2. Step 2: Convert to fraction form
    97,286.91/134,254.11 = 54,845.46/x
  3. Step 3: Cross multiply
    97,286.91x = 134,254.11 × 54,845.46
  4. Step 4: Simplify right side
    97,286.91x = 7,363,228,419.84
  5. Step 5: Solve for x
    x = 7,363,228,419.84/97,286.91
  6. Step 6: Final answer
    x = 75,685.71

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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.