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Finding the Fourth Proportional to 222,743.80, 333,143.70 and 199,221.40

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Solution

The fourth proportional to 222,743.80, 333,143.70 and 199,221.40 is: 297,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,743.80 : 333,143.70 = 199,221.40 : x
  2. Step 2: Convert to fraction form
    222,743.80/333,143.70 = 199,221.40/x
  3. Step 3: Cross multiply
    222,743.80x = 333,143.70 × 199,221.40
  4. Step 4: Simplify right side
    222,743.80x = 66,369,354,315.18
  5. Step 5: Solve for x
    x = 66,369,354,315.18/222,743.80
  6. Step 6: Final answer
    x = 297,962.75

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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.