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Finding the Fourth Proportional to 188,081.73, 281,924.15 and 61,688.93

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Solution

The fourth proportional to 188,081.73, 281,924.15 and 61,688.93 is: 92,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,081.73 : 281,924.15 = 61,688.93 : x
  2. Step 2: Convert to fraction form
    188,081.73/281,924.15 = 61,688.93/x
  3. Step 3: Cross multiply
    188,081.73x = 281,924.15 × 61,688.93
  4. Step 4: Simplify right side
    188,081.73x = 17,391,597,436.59
  5. Step 5: Solve for x
    x = 17,391,597,436.59/188,081.73
  6. Step 6: Final answer
    x = 92,468.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.