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Finding the Fourth Proportional to 481,880.94, 722,856.92 and 126,892.50

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Solution

The fourth proportional to 481,880.94, 722,856.92 and 126,892.50 is: 190,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,880.94 : 722,856.92 = 126,892.50 : x
  2. Step 2: Convert to fraction form
    481,880.94/722,856.92 = 126,892.50/x
  3. Step 3: Cross multiply
    481,880.94x = 722,856.92 × 126,892.50
  4. Step 4: Simplify right side
    481,880.94x = 91,725,121,721.10
  5. Step 5: Solve for x
    x = 91,725,121,721.10/481,880.94
  6. Step 6: Final answer
    x = 190,348.10

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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.