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Finding the Fourth Proportional to 117,115.94, 175,673.45 and 28,369.31

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Solution

The fourth proportional to 117,115.94, 175,673.45 and 28,369.31 is: 42,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115.94 : 175,673.45 = 28,369.31 : x
  2. Step 2: Convert to fraction form
    117,115.94/175,673.45 = 28,369.31/x
  3. Step 3: Cross multiply
    117,115.94x = 175,673.45 × 28,369.31
  4. Step 4: Simplify right side
    117,115.94x = 4,983,733,754.38
  5. Step 5: Solve for x
    x = 4,983,733,754.38/117,115.94
  6. Step 6: Final answer
    x = 42,553.85

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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.