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Finding the Fourth Proportional to 482,182.98, 723,323.07 and 127,221.54

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Solution

The fourth proportional to 482,182.98, 723,323.07 and 127,221.54 is: 190,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,182.98 : 723,323.07 = 127,221.54 : x
  2. Step 2: Convert to fraction form
    482,182.98/723,323.07 = 127,221.54/x
  3. Step 3: Cross multiply
    482,182.98x = 723,323.07 × 127,221.54
  4. Step 4: Simplify right side
    482,182.98x = 92,022,274,882.93
  5. Step 5: Solve for x
    x = 92,022,274,882.93/482,182.98
  6. Step 6: Final answer
    x = 190,845.13

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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.