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Finding the Fourth Proportional to 75,274.72, 112,860.72 and 35,835.82

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Solution

The fourth proportional to 75,274.72, 112,860.72 and 35,835.82 is: 53,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,274.72 : 112,860.72 = 35,835.82 : x
  2. Step 2: Convert to fraction form
    75,274.72/112,860.72 = 35,835.82/x
  3. Step 3: Cross multiply
    75,274.72x = 112,860.72 × 35,835.82
  4. Step 4: Simplify right side
    75,274.72x = 4,044,456,446.99
  5. Step 5: Solve for x
    x = 4,044,456,446.99/75,274.72
  6. Step 6: Final answer
    x = 53,729.28

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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.