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Finding the Fourth Proportional to 89,604.90, 123,654.75 and 48,769.32

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Solution

The fourth proportional to 89,604.90, 123,654.75 and 48,769.32 is: 67,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,604.90 : 123,654.75 = 48,769.32 : x
  2. Step 2: Convert to fraction form
    89,604.90/123,654.75 = 48,769.32/x
  3. Step 3: Cross multiply
    89,604.90x = 123,654.75 × 48,769.32
  4. Step 4: Simplify right side
    89,604.90x = 6,030,557,885.06
  5. Step 5: Solve for x
    x = 6,030,557,885.06/89,604.90
  6. Step 6: Final answer
    x = 67,301.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.