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Finding the Fourth Proportional to 188,148.35, 259,694.51 and 116,487.65

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Solution

The fourth proportional to 188,148.35, 259,694.51 and 116,487.65 is: 160,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,148.35 : 259,694.51 = 116,487.65 : x
  2. Step 2: Convert to fraction form
    188,148.35/259,694.51 = 116,487.65/x
  3. Step 3: Cross multiply
    188,148.35x = 259,694.51 × 116,487.65
  4. Step 4: Simplify right side
    188,148.35x = 30,251,203,254.60
  5. Step 5: Solve for x
    x = 30,251,203,254.60/188,148.35
  6. Step 6: Final answer
    x = 160,783.78

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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.