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Finding the Fourth Proportional to 480,099.44, 720,149.40 and 125,112.56

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Solution

The fourth proportional to 480,099.44, 720,149.40 and 125,112.56 is: 187,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,099.44 : 720,149.40 = 125,112.56 : x
  2. Step 2: Convert to fraction form
    480,099.44/720,149.40 = 125,112.56/x
  3. Step 3: Cross multiply
    480,099.44x = 720,149.40 × 125,112.56
  4. Step 4: Simplify right side
    480,099.44x = 90,099,735,016.46
  5. Step 5: Solve for x
    x = 90,099,735,016.46/480,099.44
  6. Step 6: Final answer
    x = 187,668.90

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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.