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Finding the Fourth Proportional to 123,958.79, 185,950.49 and 39,697.79

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Solution

The fourth proportional to 123,958.79, 185,950.49 and 39,697.79 is: 59,550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,958.79 : 185,950.49 = 39,697.79 : x
  2. Step 2: Convert to fraction form
    123,958.79/185,950.49 = 39,697.79/x
  3. Step 3: Cross multiply
    123,958.79x = 185,950.49 × 39,697.79
  4. Step 4: Simplify right side
    123,958.79x = 7,381,823,502.42
  5. Step 5: Solve for x
    x = 7,381,823,502.42/123,958.79
  6. Step 6: Final answer
    x = 59,550.63

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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.