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Finding the Fourth Proportional to 188,654.88, 260,340.96 and 103,766.88

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Solution

The fourth proportional to 188,654.88, 260,340.96 and 103,766.88 is: 143,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,654.88 : 260,340.96 = 103,766.88 : x
  2. Step 2: Convert to fraction form
    188,654.88/260,340.96 = 103,766.88/x
  3. Step 3: Cross multiply
    188,654.88x = 260,340.96 × 103,766.88
  4. Step 4: Simplify right side
    188,654.88x = 27,014,769,155.40
  5. Step 5: Solve for x
    x = 27,014,769,155.40/188,654.88
  6. Step 6: Final answer
    x = 143,196.77

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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.