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Finding the Fourth Proportional to 222,663.94, 307,295.67 and 122,081.38

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Solution

The fourth proportional to 222,663.94, 307,295.67 and 122,081.38 is: 168,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,663.94 : 307,295.67 = 122,081.38 : x
  2. Step 2: Convert to fraction form
    222,663.94/307,295.67 = 122,081.38/x
  3. Step 3: Cross multiply
    222,663.94x = 307,295.67 × 122,081.38
  4. Step 4: Simplify right side
    222,663.94x = 37,515,079,151.19
  5. Step 5: Solve for x
    x = 37,515,079,151.19/222,663.94
  6. Step 6: Final answer
    x = 168,482.96

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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.