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Finding the Fourth Proportional to 481,876.94, 722,850.92 and 126,888.50

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Solution

The fourth proportional to 481,876.94, 722,850.92 and 126,888.50 is: 190,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,876.94 : 722,850.92 = 126,888.50 : x
  2. Step 2: Convert to fraction form
    481,876.94/722,850.92 = 126,888.50/x
  3. Step 3: Cross multiply
    481,876.94x = 722,850.92 × 126,888.50
  4. Step 4: Simplify right side
    481,876.94x = 91,721,468,962.42
  5. Step 5: Solve for x
    x = 91,721,468,962.42/481,876.94
  6. Step 6: Final answer
    x = 190,342.10

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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.