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Finding the Fourth Proportional to 222,879.33, 307,498.68 and 127,318.38

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Solution

The fourth proportional to 222,879.33, 307,498.68 and 127,318.38 is: 175,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,879.33 : 307,498.68 = 127,318.38 : x
  2. Step 2: Convert to fraction form
    222,879.33/307,498.68 = 127,318.38/x
  3. Step 3: Cross multiply
    222,879.33x = 307,498.68 × 127,318.38
  4. Step 4: Simplify right side
    222,879.33x = 39,150,233,789.74
  5. Step 5: Solve for x
    x = 39,150,233,789.74/222,879.33
  6. Step 6: Final answer
    x = 175,656.64

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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.