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Finding the Fourth Proportional to 171,346.20, 257,092.20 and 108,214.80

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Solution

The fourth proportional to 171,346.20, 257,092.20 and 108,214.80 is: 162,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,346.20 : 257,092.20 = 108,214.80 : x
  2. Step 2: Convert to fraction form
    171,346.20/257,092.20 = 108,214.80/x
  3. Step 3: Cross multiply
    171,346.20x = 257,092.20 × 108,214.80
  4. Step 4: Simplify right side
    171,346.20x = 27,821,181,004.56
  5. Step 5: Solve for x
    x = 27,821,181,004.56/171,346.20
  6. Step 6: Final answer
    x = 162,368.24

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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.