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Finding the Fourth Proportional to 222,842.79, 307,520.28 and 120,866.63

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Solution

The fourth proportional to 222,842.79, 307,520.28 and 120,866.63 is: 166,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,842.79 : 307,520.28 = 120,866.63 : x
  2. Step 2: Convert to fraction form
    222,842.79/307,520.28 = 120,866.63/x
  3. Step 3: Cross multiply
    222,842.79x = 307,520.28 × 120,866.63
  4. Step 4: Simplify right side
    222,842.79x = 37,168,938,362.66
  5. Step 5: Solve for x
    x = 37,168,938,362.66/222,842.79
  6. Step 6: Final answer
    x = 166,794.44

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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.