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Finding the Fourth Proportional to 188,467.96, 260,078.64 and 107,902.97

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Solution

The fourth proportional to 188,467.96, 260,078.64 and 107,902.97 is: 148,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,467.96 : 260,078.64 = 107,902.97 : x
  2. Step 2: Convert to fraction form
    188,467.96/260,078.64 = 107,902.97/x
  3. Step 3: Cross multiply
    188,467.96x = 260,078.64 × 107,902.97
  4. Step 4: Simplify right side
    188,467.96x = 28,063,257,689.56
  5. Step 5: Solve for x
    x = 28,063,257,689.56/188,467.96
  6. Step 6: Final answer
    x = 148,902.01

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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.