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Finding the Fourth Proportional to 148,431.69, 222,724.08 and 69,553.89

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Solution

The fourth proportional to 148,431.69, 222,724.08 and 69,553.89 is: 104,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,431.69 : 222,724.08 = 69,553.89 : x
  2. Step 2: Convert to fraction form
    148,431.69/222,724.08 = 69,553.89/x
  3. Step 3: Cross multiply
    148,431.69x = 222,724.08 × 69,553.89
  4. Step 4: Simplify right side
    148,431.69x = 15,491,326,160.67
  5. Step 5: Solve for x
    x = 15,491,326,160.67/148,431.69
  6. Step 6: Final answer
    x = 104,366.70

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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.