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Finding the Fourth Proportional to 222,747.90, 307,393.46 and 120,772.46

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Solution

The fourth proportional to 222,747.90, 307,393.46 and 120,772.46 is: 166,666.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,747.90 : 307,393.46 = 120,772.46 : x
  2. Step 2: Convert to fraction form
    222,747.90/307,393.46 = 120,772.46/x
  3. Step 3: Cross multiply
    222,747.90x = 307,393.46 × 120,772.46
  4. Step 4: Simplify right side
    222,747.90x = 37,124,664,352.11
  5. Step 5: Solve for x
    x = 37,124,664,352.11/222,747.90
  6. Step 6: Final answer
    x = 166,666.73

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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.