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Finding the Fourth Proportional to 188,494.86, 259,880.34 and 154,377.66

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Solution

The fourth proportional to 188,494.86, 259,880.34 and 154,377.66 is: 212,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,494.86 : 259,880.34 = 154,377.66 : x
  2. Step 2: Convert to fraction form
    188,494.86/259,880.34 = 154,377.66/x
  3. Step 3: Cross multiply
    188,494.86x = 259,880.34 × 154,377.66
  4. Step 4: Simplify right side
    188,494.86x = 40,119,718,769.20
  5. Step 5: Solve for x
    x = 40,119,718,769.20/188,494.86
  6. Step 6: Final answer
    x = 212,842.51

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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.