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Finding the Fourth Proportional to 484,117.20, 726,180.96 and 147,212.64

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Solution

The fourth proportional to 484,117.20, 726,180.96 and 147,212.64 is: 220,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,117.20 : 726,180.96 = 147,212.64 : x
  2. Step 2: Convert to fraction form
    484,117.20/726,180.96 = 147,212.64/x
  3. Step 3: Cross multiply
    484,117.20x = 726,180.96 × 147,212.64
  4. Step 4: Simplify right side
    484,117.20x = 106,903,016,239.33
  5. Step 5: Solve for x
    x = 106,903,016,239.33/484,117.20
  6. Step 6: Final answer
    x = 220,820.53

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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.