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Finding the Fourth Proportional to 79,586.79, 109,845.36 and 45,618.04

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Solution

The fourth proportional to 79,586.79, 109,845.36 and 45,618.04 is: 62,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,586.79 : 109,845.36 = 45,618.04 : x
  2. Step 2: Convert to fraction form
    79,586.79/109,845.36 = 45,618.04/x
  3. Step 3: Cross multiply
    79,586.79x = 109,845.36 × 45,618.04
  4. Step 4: Simplify right side
    79,586.79x = 5,010,930,026.29
  5. Step 5: Solve for x
    x = 5,010,930,026.29/79,586.79
  6. Step 6: Final answer
    x = 62,961.83

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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.