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Finding the Fourth Proportional to 92,299.53, 137,943.49 and 67,392.03

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Solution

The fourth proportional to 92,299.53, 137,943.49 and 67,392.03 is: 100,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,299.53 : 137,943.49 = 67,392.03 : x
  2. Step 2: Convert to fraction form
    92,299.53/137,943.49 = 67,392.03/x
  3. Step 3: Cross multiply
    92,299.53x = 137,943.49 × 67,392.03
  4. Step 4: Simplify right side
    92,299.53x = 9,296,291,647.90
  5. Step 5: Solve for x
    x = 9,296,291,647.90/92,299.53
  6. Step 6: Final answer
    x = 100,718.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.