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Finding the Fourth Proportional to 222,570.90, 307,147.42 and 120,599.12

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Solution

The fourth proportional to 222,570.90, 307,147.42 and 120,599.12 is: 166,426.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,570.90 : 307,147.42 = 120,599.12 : x
  2. Step 2: Convert to fraction form
    222,570.90/307,147.42 = 120,599.12/x
  3. Step 3: Cross multiply
    222,570.90x = 307,147.42 × 120,599.12
  4. Step 4: Simplify right side
    222,570.90x = 37,041,708,562.27
  5. Step 5: Solve for x
    x = 37,041,708,562.27/222,570.90
  6. Step 6: Final answer
    x = 166,426.56

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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.