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Finding the Fourth Proportional to 222,867.90, 307,555.90 and 120,893.11

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Solution

The fourth proportional to 222,867.90, 307,555.90 and 120,893.11 is: 166,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,867.90 : 307,555.90 = 120,893.11 : x
  2. Step 2: Convert to fraction form
    222,867.90/307,555.90 = 120,893.11/x
  3. Step 3: Cross multiply
    222,867.90x = 307,555.90 × 120,893.11
  4. Step 4: Simplify right side
    222,867.90x = 37,181,388,178.73
  5. Step 5: Solve for x
    x = 37,181,388,178.73/222,867.90
  6. Step 6: Final answer
    x = 166,831.51

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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.