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Finding the Fourth Proportional to 72,433.89, 108,687.78 and 35,026.02

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Solution

The fourth proportional to 72,433.89, 108,687.78 and 35,026.02 is: 52,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.89 : 108,687.78 = 35,026.02 : x
  2. Step 2: Convert to fraction form
    72,433.89/108,687.78 = 35,026.02/x
  3. Step 3: Cross multiply
    72,433.89x = 108,687.78 × 35,026.02
  4. Step 4: Simplify right side
    72,433.89x = 3,806,900,356.04
  5. Step 5: Solve for x
    x = 3,806,900,356.04/72,433.89
  6. Step 6: Final answer
    x = 52,556.90

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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.