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Finding the Fourth Proportional to 213,186.92, 319,751.21 and 63,450.32

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Solution

The fourth proportional to 213,186.92, 319,751.21 and 63,450.32 is: 95,166.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,186.92 : 319,751.21 = 63,450.32 : x
  2. Step 2: Convert to fraction form
    213,186.92/319,751.21 = 63,450.32/x
  3. Step 3: Cross multiply
    213,186.92x = 319,751.21 × 63,450.32
  4. Step 4: Simplify right side
    213,186.92x = 20,288,315,154.76
  5. Step 5: Solve for x
    x = 20,288,315,154.76/213,186.92
  6. Step 6: Final answer
    x = 95,166.79

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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.