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Finding the Fourth Proportional to 222,422.20, 333,633.30 and 127,943.80

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Solution

The fourth proportional to 222,422.20, 333,633.30 and 127,943.80 is: 191,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,422.20 : 333,633.30 = 127,943.80 : x
  2. Step 2: Convert to fraction form
    222,422.20/333,633.30 = 127,943.80/x
  3. Step 3: Cross multiply
    222,422.20x = 333,633.30 × 127,943.80
  4. Step 4: Simplify right side
    222,422.20x = 42,686,312,208.54
  5. Step 5: Solve for x
    x = 42,686,312,208.54/222,422.20
  6. Step 6: Final answer
    x = 191,915.70

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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.