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Finding the Fourth Proportional to 72,058.33, 108,035.72 and 34,086.55

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Solution

The fourth proportional to 72,058.33, 108,035.72 and 34,086.55 is: 51,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,058.33 : 108,035.72 = 34,086.55 : x
  2. Step 2: Convert to fraction form
    72,058.33/108,035.72 = 34,086.55/x
  3. Step 3: Cross multiply
    72,058.33x = 108,035.72 × 34,086.55
  4. Step 4: Simplify right side
    72,058.33x = 3,682,564,801.13
  5. Step 5: Solve for x
    x = 3,682,564,801.13/72,058.33
  6. Step 6: Final answer
    x = 51,105.33

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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.