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Finding the Fourth Proportional to 322,729.20, 484,314.32 and 112,367.13

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Solution

The fourth proportional to 322,729.20, 484,314.32 and 112,367.13 is: 168,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,729.20 : 484,314.32 = 112,367.13 : x
  2. Step 2: Convert to fraction form
    322,729.20/484,314.32 = 112,367.13/x
  3. Step 3: Cross multiply
    322,729.20x = 484,314.32 × 112,367.13
  4. Step 4: Simplify right side
    322,729.20x = 54,421,009,594.47
  5. Step 5: Solve for x
    x = 54,421,009,594.47/322,729.20
  6. Step 6: Final answer
    x = 168,627.47

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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.