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Finding the Fourth Proportional to 165,648.66, 248,512.67 and 53,339.43

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Solution

The fourth proportional to 165,648.66, 248,512.67 and 53,339.43 is: 80,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,648.66 : 248,512.67 = 53,339.43 : x
  2. Step 2: Convert to fraction form
    165,648.66/248,512.67 = 53,339.43/x
  3. Step 3: Cross multiply
    165,648.66x = 248,512.67 × 53,339.43
  4. Step 4: Simplify right side
    165,648.66x = 13,255,524,165.58
  5. Step 5: Solve for x
    x = 13,255,524,165.58/165,648.66
  6. Step 6: Final answer
    x = 80,021.92

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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.