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Finding the Fourth Proportional to 72,566.43, 108,883.13 and 33,135.63

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Solution

The fourth proportional to 72,566.43, 108,883.13 and 33,135.63 is: 49,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,566.43 : 108,883.13 = 33,135.63 : x
  2. Step 2: Convert to fraction form
    72,566.43/108,883.13 = 33,135.63/x
  3. Step 3: Cross multiply
    72,566.43x = 108,883.13 × 33,135.63
  4. Step 4: Simplify right side
    72,566.43x = 3,607,910,943.24
  5. Step 5: Solve for x
    x = 3,607,910,943.24/72,566.43
  6. Step 6: Final answer
    x = 49,718.73

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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.