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Finding the Fourth Proportional to 222,561.48, 307,124.82 and 121,957.32

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Solution

The fourth proportional to 222,561.48, 307,124.82 and 121,957.32 is: 168,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,561.48 : 307,124.82 = 121,957.32 : x
  2. Step 2: Convert to fraction form
    222,561.48/307,124.82 = 121,957.32/x
  3. Step 3: Cross multiply
    222,561.48x = 307,124.82 × 121,957.32
  4. Step 4: Simplify right side
    222,561.48x = 37,456,119,952.68
  5. Step 5: Solve for x
    x = 37,456,119,952.68/222,561.48
  6. Step 6: Final answer
    x = 168,295.61

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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.