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Finding the Fourth Proportional to 53,108, 73,293.92 and 29,239.52

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Solution

The fourth proportional to 53,108, 73,293.92 and 29,239.52 is: 40,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,108 : 73,293.92 = 29,239.52 : x
  2. Step 2: Convert to fraction form
    53,108/73,293.92 = 29,239.52/x
  3. Step 3: Cross multiply
    53,108x = 73,293.92 × 29,239.52
  4. Step 4: Simplify right side
    53,108x = 2,143,079,039.72
  5. Step 5: Solve for x
    x = 2,143,079,039.72/53,108
  6. Step 6: Final answer
    x = 40,353.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.