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Finding the Fourth Proportional to 56,961.53, 85,393.83 and 34,790.46

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Solution

The fourth proportional to 56,961.53, 85,393.83 and 34,790.46 is: 52,156.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,961.53 : 85,393.83 = 34,790.46 : x
  2. Step 2: Convert to fraction form
    56,961.53/85,393.83 = 34,790.46/x
  3. Step 3: Cross multiply
    56,961.53x = 85,393.83 × 34,790.46
  4. Step 4: Simplify right side
    56,961.53x = 2,970,890,452.91
  5. Step 5: Solve for x
    x = 2,970,890,452.91/56,961.53
  6. Step 6: Final answer
    x = 52,156.09

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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.