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Finding the Fourth Proportional to 85,476.92, 117,954.71 and 49,664.11

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Solution

The fourth proportional to 85,476.92, 117,954.71 and 49,664.11 is: 68,534.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,476.92 : 117,954.71 = 49,664.11 : x
  2. Step 2: Convert to fraction form
    85,476.92/117,954.71 = 49,664.11/x
  3. Step 3: Cross multiply
    85,476.92x = 117,954.71 × 49,664.11
  4. Step 4: Simplify right side
    85,476.92x = 5,858,115,748.72
  5. Step 5: Solve for x
    x = 5,858,115,748.72/85,476.92
  6. Step 6: Final answer
    x = 68,534.47

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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.