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Finding the Fourth Proportional to 101,941.64, 140,674.60 and 56,622.52

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Solution

The fourth proportional to 101,941.64, 140,674.60 and 56,622.52 is: 78,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,941.64 : 140,674.60 = 56,622.52 : x
  2. Step 2: Convert to fraction form
    101,941.64/140,674.60 = 56,622.52/x
  3. Step 3: Cross multiply
    101,941.64x = 140,674.60 × 56,622.52
  4. Step 4: Simplify right side
    101,941.64x = 7,965,350,351.99
  5. Step 5: Solve for x
    x = 7,965,350,351.99/101,941.64
  6. Step 6: Final answer
    x = 78,136.38

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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.