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Finding the Fourth Proportional to 279,102.48, 385,026.12 and 165,845.04

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Solution

The fourth proportional to 279,102.48, 385,026.12 and 165,845.04 is: 228,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,102.48 : 385,026.12 = 165,845.04 : x
  2. Step 2: Convert to fraction form
    279,102.48/385,026.12 = 165,845.04/x
  3. Step 3: Cross multiply
    279,102.48x = 385,026.12 × 165,845.04
  4. Step 4: Simplify right side
    279,102.48x = 63,854,672,272.44
  5. Step 5: Solve for x
    x = 63,854,672,272.44/279,102.48
  6. Step 6: Final answer
    x = 228,785.76

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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.