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Finding the Fourth Proportional to 300,710.18, 450,749.39 and 111,049.66

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Solution

The fourth proportional to 300,710.18, 450,749.39 and 111,049.66 is: 166,457.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,710.18 : 450,749.39 = 111,049.66 : x
  2. Step 2: Convert to fraction form
    300,710.18/450,749.39 = 111,049.66/x
  3. Step 3: Cross multiply
    300,710.18x = 450,749.39 × 111,049.66
  4. Step 4: Simplify right side
    300,710.18x = 50,055,564,250.96
  5. Step 5: Solve for x
    x = 50,055,564,250.96/300,710.18
  6. Step 6: Final answer
    x = 166,457.83

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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.