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Finding the Fourth Proportional to 270,886.60, 405,552.30 and 165,910.60

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Solution

The fourth proportional to 270,886.60, 405,552.30 and 165,910.60 is: 248,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,886.60 : 405,552.30 = 165,910.60 : x
  2. Step 2: Convert to fraction form
    270,886.60/405,552.30 = 165,910.60/x
  3. Step 3: Cross multiply
    270,886.60x = 405,552.30 × 165,910.60
  4. Step 4: Simplify right side
    270,886.60x = 67,285,425,424.38
  5. Step 5: Solve for x
    x = 67,285,425,424.38/270,886.60
  6. Step 6: Final answer
    x = 248,389.64

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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.