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Finding the Fourth Proportional to 163,906.20, 245,859.30 and 64,069.65

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Solution

The fourth proportional to 163,906.20, 245,859.30 and 64,069.65 is: 96,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,906.20 : 245,859.30 = 64,069.65 : x
  2. Step 2: Convert to fraction form
    163,906.20/245,859.30 = 64,069.65/x
  3. Step 3: Cross multiply
    163,906.20x = 245,859.30 × 64,069.65
  4. Step 4: Simplify right side
    163,906.20x = 15,752,119,300.25
  5. Step 5: Solve for x
    x = 15,752,119,300.25/163,906.20
  6. Step 6: Final answer
    x = 96,104.48

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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.