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Finding the Fourth Proportional to 117,669.92, 176,504.79 and 47,549.21

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Solution

The fourth proportional to 117,669.92, 176,504.79 and 47,549.21 is: 71,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,669.92 : 176,504.79 = 47,549.21 : x
  2. Step 2: Convert to fraction form
    117,669.92/176,504.79 = 47,549.21/x
  3. Step 3: Cross multiply
    117,669.92x = 176,504.79 × 47,549.21
  4. Step 4: Simplify right side
    117,669.92x = 8,392,663,325.72
  5. Step 5: Solve for x
    x = 8,392,663,325.72/117,669.92
  6. Step 6: Final answer
    x = 71,323.78

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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.