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Finding the Fourth Proportional to 117,692.88, 176,472 and 38,785.92

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Solution

The fourth proportional to 117,692.88, 176,472 and 38,785.92 is: 58,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,692.88 : 176,472 = 38,785.92 : x
  2. Step 2: Convert to fraction form
    117,692.88/176,472 = 38,785.92/x
  3. Step 3: Cross multiply
    117,692.88x = 176,472 × 38,785.92
  4. Step 4: Simplify right side
    117,692.88x = 6,844,628,874.24
  5. Step 5: Solve for x
    x = 6,844,628,874.24/117,692.88
  6. Step 6: Final answer
    x = 58,156.69

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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.