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Finding the Fourth Proportional to 92,162.66, 138,297.71 and 38,851.37

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Solution

The fourth proportional to 92,162.66, 138,297.71 and 38,851.37 is: 58,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,162.66 : 138,297.71 = 38,851.37 : x
  2. Step 2: Convert to fraction form
    92,162.66/138,297.71 = 38,851.37/x
  3. Step 3: Cross multiply
    92,162.66x = 138,297.71 × 38,851.37
  4. Step 4: Simplify right side
    92,162.66x = 5,373,055,425.62
  5. Step 5: Solve for x
    x = 5,373,055,425.62/92,162.66
  6. Step 6: Final answer
    x = 58,299.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.