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Finding the Fourth Proportional to 214,923.20, 322,384.82 and 67,179.20

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Solution

The fourth proportional to 214,923.20, 322,384.82 and 67,179.20 is: 100,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,923.20 : 322,384.82 = 67,179.20 : x
  2. Step 2: Convert to fraction form
    214,923.20/322,384.82 = 67,179.20/x
  3. Step 3: Cross multiply
    214,923.20x = 322,384.82 × 67,179.20
  4. Step 4: Simplify right side
    214,923.20x = 21,657,552,351.92
  5. Step 5: Solve for x
    x = 21,657,552,351.92/214,923.20
  6. Step 6: Final answer
    x = 100,768.80

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1.5x scale

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.