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Finding the Fourth Proportional to 322,275.51, 483,418.13 and 111,918.51

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Solution

The fourth proportional to 322,275.51, 483,418.13 and 111,918.51 is: 167,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,275.51 : 483,418.13 = 111,918.51 : x
  2. Step 2: Convert to fraction form
    322,275.51/483,418.13 = 111,918.51/x
  3. Step 3: Cross multiply
    322,275.51x = 483,418.13 × 111,918.51
  4. Step 4: Simplify right side
    322,275.51x = 54,103,436,256.99
  5. Step 5: Solve for x
    x = 54,103,436,256.99/322,275.51
  6. Step 6: Final answer
    x = 167,879.45

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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.