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Finding the Fourth Proportional to 222,425.99, 306,948.03 and 120,451.57

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Solution

The fourth proportional to 222,425.99, 306,948.03 and 120,451.57 is: 166,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,425.99 : 306,948.03 = 120,451.57 : x
  2. Step 2: Convert to fraction form
    222,425.99/306,948.03 = 120,451.57/x
  3. Step 3: Cross multiply
    222,425.99x = 306,948.03 × 120,451.57
  4. Step 4: Simplify right side
    222,425.99x = 36,972,371,354.54
  5. Step 5: Solve for x
    x = 36,972,371,354.54/222,425.99
  6. Step 6: Final answer
    x = 166,223.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.