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Finding the Fourth Proportional to 104,915.67, 157,420.02 and 54,983.91

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Solution

The fourth proportional to 104,915.67, 157,420.02 and 54,983.91 is: 82,500.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,915.67 : 157,420.02 = 54,983.91 : x
  2. Step 2: Convert to fraction form
    104,915.67/157,420.02 = 54,983.91/x
  3. Step 3: Cross multiply
    104,915.67x = 157,420.02 × 54,983.91
  4. Step 4: Simplify right side
    104,915.67x = 8,655,568,211.88
  5. Step 5: Solve for x
    x = 8,655,568,211.88/104,915.67
  6. Step 6: Final answer
    x = 82,500.24

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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.