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Finding the Fourth Proportional to 117,915.69, 176,837.09 and 39,013.59

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Solution

The fourth proportional to 117,915.69, 176,837.09 and 39,013.59 is: 58,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,915.69 : 176,837.09 = 39,013.59 : x
  2. Step 2: Convert to fraction form
    117,915.69/176,837.09 = 39,013.59/x
  3. Step 3: Cross multiply
    117,915.69x = 176,837.09 × 39,013.59
  4. Step 4: Simplify right side
    117,915.69x = 6,899,049,530.99
  5. Step 5: Solve for x
    x = 6,899,049,530.99/117,915.69
  6. Step 6: Final answer
    x = 58,508.33

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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.