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Finding the Fourth Proportional to 322,403.90, 483,522.92 and 132,918.11

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Solution

The fourth proportional to 322,403.90, 483,522.92 and 132,918.11 is: 199,342.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.90 : 483,522.92 = 132,918.11 : x
  2. Step 2: Convert to fraction form
    322,403.90/483,522.92 = 132,918.11/x
  3. Step 3: Cross multiply
    322,403.90x = 483,522.92 × 132,918.11
  4. Step 4: Simplify right side
    322,403.90x = 64,268,954,617.35
  5. Step 5: Solve for x
    x = 64,268,954,617.35/322,403.90
  6. Step 6: Final answer
    x = 199,342.98

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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.