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Finding the Fourth Proportional to 188,872.92, 260,645.58 and 108,303.48

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Solution

The fourth proportional to 188,872.92, 260,645.58 and 108,303.48 is: 149,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,872.92 : 260,645.58 = 108,303.48 : x
  2. Step 2: Convert to fraction form
    188,872.92/260,645.58 = 108,303.48/x
  3. Step 3: Cross multiply
    188,872.92x = 260,645.58 × 108,303.48
  4. Step 4: Simplify right side
    188,872.92x = 28,228,823,360.62
  5. Step 5: Solve for x
    x = 28,228,823,360.62/188,872.92
  6. Step 6: Final answer
    x = 149,459.35

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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.