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Finding the Fourth Proportional to 92,324.21, 138,398.83 and 39,700.13

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Solution

The fourth proportional to 92,324.21, 138,398.83 and 39,700.13 is: 59,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,324.21 : 138,398.83 = 39,700.13 : x
  2. Step 2: Convert to fraction form
    92,324.21/138,398.83 = 39,700.13/x
  3. Step 3: Cross multiply
    92,324.21x = 138,398.83 × 39,700.13
  4. Step 4: Simplify right side
    92,324.21x = 5,494,450,751.60
  5. Step 5: Solve for x
    x = 5,494,450,751.60/92,324.21
  6. Step 6: Final answer
    x = 59,512.57

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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.