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Finding the Fourth Proportional to 61,794.54, 85,231.17 and 40,566.06

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Solution

The fourth proportional to 61,794.54, 85,231.17 and 40,566.06 is: 55,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,794.54 : 85,231.17 = 40,566.06 : x
  2. Step 2: Convert to fraction form
    61,794.54/85,231.17 = 40,566.06/x
  3. Step 3: Cross multiply
    61,794.54x = 85,231.17 × 40,566.06
  4. Step 4: Simplify right side
    61,794.54x = 3,457,492,756.09
  5. Step 5: Solve for x
    x = 3,457,492,756.09/61,794.54
  6. Step 6: Final answer
    x = 55,951.43

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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.