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Finding the Fourth Proportional to 204,720.60, 307,397.70 and 111,408.60

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Solution

The fourth proportional to 204,720.60, 307,397.70 and 111,408.60 is: 167,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,720.60 : 307,397.70 = 111,408.60 : x
  2. Step 2: Convert to fraction form
    204,720.60/307,397.70 = 111,408.60/x
  3. Step 3: Cross multiply
    204,720.60x = 307,397.70 × 111,408.60
  4. Step 4: Simplify right side
    204,720.60x = 34,246,747,400.22
  5. Step 5: Solve for x
    x = 34,246,747,400.22/204,720.60
  6. Step 6: Final answer
    x = 167,285.30

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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.