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Finding the Fourth Proportional to 322,529.20, 483,390.60 and 164,820.40

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Solution

The fourth proportional to 322,529.20, 483,390.60 and 164,820.40 is: 247,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,529.20 : 483,390.60 = 164,820.40 : x
  2. Step 2: Convert to fraction form
    322,529.20/483,390.60 = 164,820.40/x
  3. Step 3: Cross multiply
    322,529.20x = 483,390.60 × 164,820.40
  4. Step 4: Simplify right side
    322,529.20x = 79,672,632,048.24
  5. Step 5: Solve for x
    x = 79,672,632,048.24/322,529.20
  6. Step 6: Final answer
    x = 247,024.55

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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.