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Finding the Fourth Proportional to 310,062.15, 465,093.23 and 220,832.55

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Solution

The fourth proportional to 310,062.15, 465,093.23 and 220,832.55 is: 331,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,062.15 : 465,093.23 = 220,832.55 : x
  2. Step 2: Convert to fraction form
    310,062.15/465,093.23 = 220,832.55/x
  3. Step 3: Cross multiply
    310,062.15x = 465,093.23 × 220,832.55
  4. Step 4: Simplify right side
    310,062.15x = 102,707,723,968.64
  5. Step 5: Solve for x
    x = 102,707,723,968.64/310,062.15
  6. Step 6: Final answer
    x = 331,248.83

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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.