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Finding the Fourth Proportional to 322,409.60, 483,614.40 and 112,068.80

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Solution

The fourth proportional to 322,409.60, 483,614.40 and 112,068.80 is: 168,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,409.60 : 483,614.40 = 112,068.80 : x
  2. Step 2: Convert to fraction form
    322,409.60/483,614.40 = 112,068.80/x
  3. Step 3: Cross multiply
    322,409.60x = 483,614.40 × 112,068.80
  4. Step 4: Simplify right side
    322,409.60x = 54,198,085,470.72
  5. Step 5: Solve for x
    x = 54,198,085,470.72/322,409.60
  6. Step 6: Final answer
    x = 168,103.20

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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.