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Finding the Fourth Proportional to 243,781.70, 365,672.55 and 222,008.90

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Solution

The fourth proportional to 243,781.70, 365,672.55 and 222,008.90 is: 333,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,781.70 : 365,672.55 = 222,008.90 : x
  2. Step 2: Convert to fraction form
    243,781.70/365,672.55 = 222,008.90/x
  3. Step 3: Cross multiply
    243,781.70x = 365,672.55 × 222,008.90
  4. Step 4: Simplify right side
    243,781.70x = 81,182,560,585.70
  5. Step 5: Solve for x
    x = 81,182,560,585.70/243,781.70
  6. Step 6: Final answer
    x = 333,013.35

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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.