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Finding the Fourth Proportional to 49,396.34, 68,121.86 and 42,253.22

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Solution

The fourth proportional to 49,396.34, 68,121.86 and 42,253.22 is: 58,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,396.34 : 68,121.86 = 42,253.22 : x
  2. Step 2: Convert to fraction form
    49,396.34/68,121.86 = 42,253.22/x
  3. Step 3: Cross multiply
    49,396.34x = 68,121.86 × 42,253.22
  4. Step 4: Simplify right side
    49,396.34x = 2,878,367,937.39
  5. Step 5: Solve for x
    x = 2,878,367,937.39/49,396.34
  6. Step 6: Final answer
    x = 58,270.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.