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Finding the Fourth Proportional to 262,565.20, 393,847.80 and 168,086.80

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Solution

The fourth proportional to 262,565.20, 393,847.80 and 168,086.80 is: 252,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,565.20 : 393,847.80 = 168,086.80 : x
  2. Step 2: Convert to fraction form
    262,565.20/393,847.80 = 168,086.80/x
  3. Step 3: Cross multiply
    262,565.20x = 393,847.80 × 168,086.80
  4. Step 4: Simplify right side
    262,565.20x = 66,200,616,389.04
  5. Step 5: Solve for x
    x = 66,200,616,389.04/262,565.20
  6. Step 6: Final answer
    x = 252,130.20

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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.