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Finding the Fourth Proportional to 322,405.20, 483,611.85 and 97,767.90

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Solution

The fourth proportional to 322,405.20, 483,611.85 and 97,767.90 is: 146,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,405.20 : 483,611.85 = 97,767.90 : x
  2. Step 2: Convert to fraction form
    322,405.20/483,611.85 = 97,767.90/x
  3. Step 3: Cross multiply
    322,405.20x = 483,611.85 × 97,767.90
  4. Step 4: Simplify right side
    322,405.20x = 47,281,714,989.62
  5. Step 5: Solve for x
    x = 47,281,714,989.62/322,405.20
  6. Step 6: Final answer
    x = 146,653.08

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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.