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Finding the Fourth Proportional to 480,627.49, 720,982.24 and 125,640.94

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Solution

The fourth proportional to 480,627.49, 720,982.24 and 125,640.94 is: 188,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,627.49 : 720,982.24 = 125,640.94 : x
  2. Step 2: Convert to fraction form
    480,627.49/720,982.24 = 125,640.94/x
  3. Step 3: Cross multiply
    480,627.49x = 720,982.24 × 125,640.94
  4. Step 4: Simplify right side
    480,627.49x = 90,584,884,240.35
  5. Step 5: Solve for x
    x = 90,584,884,240.35/480,627.49
  6. Step 6: Final answer
    x = 188,472.13

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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.