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Finding the Fourth Proportional to 117,893.72, 176,868.26 and 39,007.94

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Solution

The fourth proportional to 117,893.72, 176,868.26 and 39,007.94 is: 58,521.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,893.72 : 176,868.26 = 39,007.94 : x
  2. Step 2: Convert to fraction form
    117,893.72/176,868.26 = 39,007.94/x
  3. Step 3: Cross multiply
    117,893.72x = 176,868.26 × 39,007.94
  4. Step 4: Simplify right side
    117,893.72x = 6,899,266,721.12
  5. Step 5: Solve for x
    x = 6,899,266,721.12/117,893.72
  6. Step 6: Final answer
    x = 58,521.07

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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.