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Finding the Fourth Proportional to 92,010.74, 138,015.92 and 28,835.69

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Solution

The fourth proportional to 92,010.74, 138,015.92 and 28,835.69 is: 43,253.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,010.74 : 138,015.92 = 28,835.69 : x
  2. Step 2: Convert to fraction form
    92,010.74/138,015.92 = 28,835.69/x
  3. Step 3: Cross multiply
    92,010.74x = 138,015.92 × 28,835.69
  4. Step 4: Simplify right side
    92,010.74x = 3,979,783,449.93
  5. Step 5: Solve for x
    x = 3,979,783,449.93/92,010.74
  6. Step 6: Final answer
    x = 43,253.47

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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.