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Finding the Fourth Proportional to 322,756.92, 483,100.19 and 172,621.80

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Solution

The fourth proportional to 322,756.92, 483,100.19 and 172,621.80 is: 258,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,756.92 : 483,100.19 = 172,621.80 : x
  2. Step 2: Convert to fraction form
    322,756.92/483,100.19 = 172,621.80/x
  3. Step 3: Cross multiply
    322,756.92x = 483,100.19 × 172,621.80
  4. Step 4: Simplify right side
    322,756.92x = 83,393,621,962.64
  5. Step 5: Solve for x
    x = 83,393,621,962.64/322,756.92
  6. Step 6: Final answer
    x = 258,379.04

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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.