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Finding the Fourth Proportional to 136,625.78, 204,915.50 and 36,763.71

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Solution

The fourth proportional to 136,625.78, 204,915.50 and 36,763.71 is: 55,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,625.78 : 204,915.50 = 36,763.71 : x
  2. Step 2: Convert to fraction form
    136,625.78/204,915.50 = 36,763.71/x
  3. Step 3: Cross multiply
    136,625.78x = 204,915.50 × 36,763.71
  4. Step 4: Simplify right side
    136,625.78x = 7,533,453,832.69
  5. Step 5: Solve for x
    x = 7,533,453,832.69/136,625.78
  6. Step 6: Final answer
    x = 55,139.33

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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.