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Finding the Fourth Proportional to 92,019.33, 138,029.04 and 28,844.37

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Solution

The fourth proportional to 92,019.33, 138,029.04 and 28,844.37 is: 43,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,019.33 : 138,029.04 = 28,844.37 : x
  2. Step 2: Convert to fraction form
    92,019.33/138,029.04 = 28,844.37/x
  3. Step 3: Cross multiply
    92,019.33x = 138,029.04 × 28,844.37
  4. Step 4: Simplify right side
    92,019.33x = 3,981,360,700.50
  5. Step 5: Solve for x
    x = 3,981,360,700.50/92,019.33
  6. Step 6: Final answer
    x = 43,266.57

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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.