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Finding the Fourth Proportional to 101,763, 140,432.94 and 62,019

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Solution

The fourth proportional to 101,763, 140,432.94 and 62,019 is: 85,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,763 : 140,432.94 = 62,019 : x
  2. Step 2: Convert to fraction form
    101,763/140,432.94 = 62,019/x
  3. Step 3: Cross multiply
    101,763x = 140,432.94 × 62,019
  4. Step 4: Simplify right side
    101,763x = 8,709,510,505.86
  5. Step 5: Solve for x
    x = 8,709,510,505.86/101,763
  6. Step 6: Final answer
    x = 85,586.22

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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.