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Finding the Fourth Proportional to 322,493.60, 483,740.40 and 163,061.30

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Solution

The fourth proportional to 322,493.60, 483,740.40 and 163,061.30 is: 244,591.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,493.60 : 483,740.40 = 163,061.30 : x
  2. Step 2: Convert to fraction form
    322,493.60/483,740.40 = 163,061.30/x
  3. Step 3: Cross multiply
    322,493.60x = 483,740.40 × 163,061.30
  4. Step 4: Simplify right side
    322,493.60x = 78,879,338,486.52
  5. Step 5: Solve for x
    x = 78,879,338,486.52/322,493.60
  6. Step 6: Final answer
    x = 244,591.95

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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.