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Finding the Fourth Proportional to 165,886.70, 248,682.72 and 64,661.42

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Solution

The fourth proportional to 165,886.70, 248,682.72 and 64,661.42 is: 96,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,886.70 : 248,682.72 = 64,661.42 : x
  2. Step 2: Convert to fraction form
    165,886.70/248,682.72 = 64,661.42/x
  3. Step 3: Cross multiply
    165,886.70x = 248,682.72 × 64,661.42
  4. Step 4: Simplify right side
    165,886.70x = 16,080,177,804.66
  5. Step 5: Solve for x
    x = 16,080,177,804.66/165,886.70
  6. Step 6: Final answer
    x = 96,934.70

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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.