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Finding the Fourth Proportional to 103,950.95, 155,793.85 and 50,655.65

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Solution

The fourth proportional to 103,950.95, 155,793.85 and 50,655.65 is: 75,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,950.95 : 155,793.85 = 50,655.65 : x
  2. Step 2: Convert to fraction form
    103,950.95/155,793.85 = 50,655.65/x
  3. Step 3: Cross multiply
    103,950.95x = 155,793.85 × 50,655.65
  4. Step 4: Simplify right side
    103,950.95x = 7,891,837,832.14
  5. Step 5: Solve for x
    x = 7,891,837,832.14/103,950.95
  6. Step 6: Final answer
    x = 75,918.87

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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.