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Finding the Fourth Proportional to 168,659.40, 253,280.70 and 163,410.60

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Solution

The fourth proportional to 168,659.40, 253,280.70 and 163,410.60 is: 245,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,659.40 : 253,280.70 = 163,410.60 : x
  2. Step 2: Convert to fraction form
    168,659.40/253,280.70 = 163,410.60/x
  3. Step 3: Cross multiply
    168,659.40x = 253,280.70 × 163,410.60
  4. Step 4: Simplify right side
    168,659.40x = 41,388,751,155.42
  5. Step 5: Solve for x
    x = 41,388,751,155.42/168,659.40
  6. Step 6: Final answer
    x = 245,398.43

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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.