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Finding the Fourth Proportional to 287,606.82, 396,898.74 and 166,819.62

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Solution

The fourth proportional to 287,606.82, 396,898.74 and 166,819.62 is: 230,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,606.82 : 396,898.74 = 166,819.62 : x
  2. Step 2: Convert to fraction form
    287,606.82/396,898.74 = 166,819.62/x
  3. Step 3: Cross multiply
    287,606.82x = 396,898.74 × 166,819.62
  4. Step 4: Simplify right side
    287,606.82x = 66,210,496,985.28
  5. Step 5: Solve for x
    x = 66,210,496,985.28/287,606.82
  6. Step 6: Final answer
    x = 230,211.85

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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.