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Finding the Fourth Proportional to 117,787.38, 176,700.78 and 92,485.88

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Solution

The fourth proportional to 117,787.38, 176,700.78 and 92,485.88 is: 138,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,787.38 : 176,700.78 = 92,485.88 : x
  2. Step 2: Convert to fraction form
    117,787.38/176,700.78 = 92,485.88/x
  3. Step 3: Cross multiply
    117,787.38x = 176,700.78 × 92,485.88
  4. Step 4: Simplify right side
    117,787.38x = 16,342,327,134.99
  5. Step 5: Solve for x
    x = 16,342,327,134.99/117,787.38
  6. Step 6: Final answer
    x = 138,744.30

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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.