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Finding the Fourth Proportional to 117,529, 176,176.86 and 55,087.72

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Solution

The fourth proportional to 117,529, 176,176.86 and 55,087.72 is: 82,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,529 : 176,176.86 = 55,087.72 : x
  2. Step 2: Convert to fraction form
    117,529/176,176.86 = 55,087.72/x
  3. Step 3: Cross multiply
    117,529x = 176,176.86 × 55,087.72
  4. Step 4: Simplify right side
    117,529x = 9,705,181,534.16
  5. Step 5: Solve for x
    x = 9,705,181,534.16/117,529
  6. Step 6: Final answer
    x = 82,576.91

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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.