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Finding the Fourth Proportional to 322,291.12, 483,363.76 and 122,540.28

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Solution

The fourth proportional to 322,291.12, 483,363.76 and 122,540.28 is: 183,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,291.12 : 483,363.76 = 122,540.28 : x
  2. Step 2: Convert to fraction form
    322,291.12/483,363.76 = 122,540.28/x
  3. Step 3: Cross multiply
    322,291.12x = 483,363.76 × 122,540.28
  4. Step 4: Simplify right side
    322,291.12x = 59,231,530,492.25
  5. Step 5: Solve for x
    x = 59,231,530,492.25/322,291.12
  6. Step 6: Final answer
    x = 183,782.69

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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.