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Finding the Fourth Proportional to 322,578.60, 483,752.70 and 112,223.40

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Solution

The fourth proportional to 322,578.60, 483,752.70 and 112,223.40 is: 168,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,578.60 : 483,752.70 = 112,223.40 : x
  2. Step 2: Convert to fraction form
    322,578.60/483,752.70 = 112,223.40/x
  3. Step 3: Cross multiply
    322,578.60x = 483,752.70 × 112,223.40
  4. Step 4: Simplify right side
    322,578.60x = 54,288,372,753.18
  5. Step 5: Solve for x
    x = 54,288,372,753.18/322,578.60
  6. Step 6: Final answer
    x = 168,295.02

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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.