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Finding the Fourth Proportional to 217,078.80, 325,618.20 and 164,590.80

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Solution

The fourth proportional to 217,078.80, 325,618.20 and 164,590.80 is: 246,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,078.80 : 325,618.20 = 164,590.80 : x
  2. Step 2: Convert to fraction form
    217,078.80/325,618.20 = 164,590.80/x
  3. Step 3: Cross multiply
    217,078.80x = 325,618.20 × 164,590.80
  4. Step 4: Simplify right side
    217,078.80x = 53,593,760,032.56
  5. Step 5: Solve for x
    x = 53,593,760,032.56/217,078.80
  6. Step 6: Final answer
    x = 246,886.20

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1.5x scale

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.