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Finding the Fourth Proportional to 75,367.53, 103,985.87 and 48,525.57

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Solution

The fourth proportional to 75,367.53, 103,985.87 and 48,525.57 is: 66,951.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,367.53 : 103,985.87 = 48,525.57 : x
  2. Step 2: Convert to fraction form
    75,367.53/103,985.87 = 48,525.57/x
  3. Step 3: Cross multiply
    75,367.53x = 103,985.87 × 48,525.57
  4. Step 4: Simplify right side
    75,367.53x = 5,045,973,371.07
  5. Step 5: Solve for x
    x = 5,045,973,371.07/75,367.53
  6. Step 6: Final answer
    x = 66,951.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.