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Finding the Fourth Proportional to 213,127.92, 319,691.79 and 63,367.56

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Solution

The fourth proportional to 213,127.92, 319,691.79 and 63,367.56 is: 95,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,127.92 : 319,691.79 = 63,367.56 : x
  2. Step 2: Convert to fraction form
    213,127.92/319,691.79 = 63,367.56/x
  3. Step 3: Cross multiply
    213,127.92x = 319,691.79 × 63,367.56
  4. Step 4: Simplify right side
    213,127.92x = 20,258,088,684.33
  5. Step 5: Solve for x
    x = 20,258,088,684.33/213,127.92
  6. Step 6: Final answer
    x = 95,051.31

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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.