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Finding the Fourth Proportional to 73,157.55, 109,758.46 and 51,851.48

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Solution

The fourth proportional to 73,157.55, 109,758.46 and 51,851.48 is: 77,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.55 : 109,758.46 = 51,851.48 : x
  2. Step 2: Convert to fraction form
    73,157.55/109,758.46 = 51,851.48/x
  3. Step 3: Cross multiply
    73,157.55x = 109,758.46 × 51,851.48
  4. Step 4: Simplify right side
    73,157.55x = 5,691,138,256.62
  5. Step 5: Solve for x
    x = 5,691,138,256.62/73,157.55
  6. Step 6: Final answer
    x = 77,792.90

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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.