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Finding the Fourth Proportional to 316,998.86, 475,571.19 and 103,773.65

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Solution

The fourth proportional to 316,998.86, 475,571.19 and 103,773.65 is: 155,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,998.86 : 475,571.19 = 103,773.65 : x
  2. Step 2: Convert to fraction form
    316,998.86/475,571.19 = 103,773.65/x
  3. Step 3: Cross multiply
    316,998.86x = 475,571.19 × 103,773.65
  4. Step 4: Simplify right side
    316,998.86x = 49,351,758,221.14
  5. Step 5: Solve for x
    x = 49,351,758,221.14/316,998.86
  6. Step 6: Final answer
    x = 155,684.34

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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.