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Finding the Fourth Proportional to 215,777.31, 297,900.35 and 191,837.83

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Solution

The fourth proportional to 215,777.31, 297,900.35 and 191,837.83 is: 264,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,777.31 : 297,900.35 = 191,837.83 : x
  2. Step 2: Convert to fraction form
    215,777.31/297,900.35 = 191,837.83/x
  3. Step 3: Cross multiply
    215,777.31x = 297,900.35 × 191,837.83
  4. Step 4: Simplify right side
    215,777.31x = 57,148,555,690.33
  5. Step 5: Solve for x
    x = 57,148,555,690.33/215,777.31
  6. Step 6: Final answer
    x = 264,849.70

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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.