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Finding the Fourth Proportional to 222,480.15, 333,630.32 and 138,115.41

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Solution

The fourth proportional to 222,480.15, 333,630.32 and 138,115.41 is: 207,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,480.15 : 333,630.32 = 138,115.41 : x
  2. Step 2: Convert to fraction form
    222,480.15/333,630.32 = 138,115.41/x
  3. Step 3: Cross multiply
    222,480.15x = 333,630.32 × 138,115.41
  4. Step 4: Simplify right side
    222,480.15x = 46,079,487,744.65
  5. Step 5: Solve for x
    x = 46,079,487,744.65/222,480.15
  6. Step 6: Final answer
    x = 207,117.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.