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Finding the Fourth Proportional to 117,615.21, 176,367.21 and 45,601.82

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Solution

The fourth proportional to 117,615.21, 176,367.21 and 45,601.82 is: 68,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.21 : 176,367.21 = 45,601.82 : x
  2. Step 2: Convert to fraction form
    117,615.21/176,367.21 = 45,601.82/x
  3. Step 3: Cross multiply
    117,615.21x = 176,367.21 × 45,601.82
  4. Step 4: Simplify right side
    117,615.21x = 8,042,664,882.49
  5. Step 5: Solve for x
    x = 8,042,664,882.49/117,615.21
  6. Step 6: Final answer
    x = 68,381.16

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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.