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Finding the Fourth Proportional to 222,967.66, 307,791.34 and 136,940.58

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Solution

The fourth proportional to 222,967.66, 307,791.34 and 136,940.58 is: 189,036.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,967.66 : 307,791.34 = 136,940.58 : x
  2. Step 2: Convert to fraction form
    222,967.66/307,791.34 = 136,940.58/x
  3. Step 3: Cross multiply
    222,967.66x = 307,791.34 × 136,940.58
  4. Step 4: Simplify right side
    222,967.66x = 42,149,124,618.58
  5. Step 5: Solve for x
    x = 42,149,124,618.58/222,967.66
  6. Step 6: Final answer
    x = 189,036.94

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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.