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Finding the Fourth Proportional to 188,854.92, 260,664.12 and 108,281

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Solution

The fourth proportional to 188,854.92, 260,664.12 and 108,281 is: 149,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,854.92 : 260,664.12 = 108,281 : x
  2. Step 2: Convert to fraction form
    188,854.92/260,664.12 = 108,281/x
  3. Step 3: Cross multiply
    188,854.92x = 260,664.12 × 108,281
  4. Step 4: Simplify right side
    188,854.92x = 28,224,971,577.72
  5. Step 5: Solve for x
    x = 28,224,971,577.72/188,854.92
  6. Step 6: Final answer
    x = 149,453.20

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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.