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Finding the Fourth Proportional to 482,159.54, 723,287.91 and 127,198.10

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Solution

The fourth proportional to 482,159.54, 723,287.91 and 127,198.10 is: 190,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,159.54 : 723,287.91 = 127,198.10 : x
  2. Step 2: Convert to fraction form
    482,159.54/723,287.91 = 127,198.10/x
  3. Step 3: Cross multiply
    482,159.54x = 723,287.91 × 127,198.10
  4. Step 4: Simplify right side
    482,159.54x = 92,000,850,190.18
  5. Step 5: Solve for x
    x = 92,000,850,190.18/482,159.54
  6. Step 6: Final answer
    x = 190,809.97

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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.