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Finding the Fourth Proportional to 204,699.60, 307,366.20 and 111,387.60

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Solution

The fourth proportional to 204,699.60, 307,366.20 and 111,387.60 is: 167,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,699.60 : 307,366.20 = 111,387.60 : x
  2. Step 2: Convert to fraction form
    204,699.60/307,366.20 = 111,387.60/x
  3. Step 3: Cross multiply
    204,699.60x = 307,366.20 × 111,387.60
  4. Step 4: Simplify right side
    204,699.60x = 34,236,783,339.12
  5. Step 5: Solve for x
    x = 34,236,783,339.12/204,699.60
  6. Step 6: Final answer
    x = 167,253.79

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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.