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Finding the Fourth Proportional to 222,395.60, 333,625.80 and 72,642.80

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Solution

The fourth proportional to 222,395.60, 333,625.80 and 72,642.80 is: 108,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,395.60 : 333,625.80 = 72,642.80 : x
  2. Step 2: Convert to fraction form
    222,395.60/333,625.80 = 72,642.80/x
  3. Step 3: Cross multiply
    222,395.60x = 333,625.80 × 72,642.80
  4. Step 4: Simplify right side
    222,395.60x = 24,235,512,264.24
  5. Step 5: Solve for x
    x = 24,235,512,264.24/222,395.60
  6. Step 6: Final answer
    x = 108,974.78

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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.