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Finding the Fourth Proportional to 404,357.74, 606,432.77 and 119,981.01

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Solution

The fourth proportional to 404,357.74, 606,432.77 and 119,981.01 is: 179,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,357.74 : 606,432.77 = 119,981.01 : x
  2. Step 2: Convert to fraction form
    404,357.74/606,432.77 = 119,981.01/x
  3. Step 3: Cross multiply
    404,357.74x = 606,432.77 × 119,981.01
  4. Step 4: Simplify right side
    404,357.74x = 72,760,419,040.74
  5. Step 5: Solve for x
    x = 72,760,419,040.74/404,357.74
  6. Step 6: Final answer
    x = 179,940.71

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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.