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Finding the Fourth Proportional to 322,437.60, 482,918.79 and 154,076.28

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Solution

The fourth proportional to 322,437.60, 482,918.79 and 154,076.28 is: 230,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,437.60 : 482,918.79 = 154,076.28 : x
  2. Step 2: Convert to fraction form
    322,437.60/482,918.79 = 154,076.28/x
  3. Step 3: Cross multiply
    322,437.60x = 482,918.79 × 154,076.28
  4. Step 4: Simplify right side
    322,437.60x = 74,406,330,705.30
  5. Step 5: Solve for x
    x = 74,406,330,705.30/322,437.60
  6. Step 6: Final answer
    x = 230,761.95

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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.