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Finding the Fourth Proportional to 103,466.53, 155,121.13 and 53,514.82

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Solution

The fourth proportional to 103,466.53, 155,121.13 and 53,514.82 is: 80,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,466.53 : 155,121.13 = 53,514.82 : x
  2. Step 2: Convert to fraction form
    103,466.53/155,121.13 = 53,514.82/x
  3. Step 3: Cross multiply
    103,466.53x = 155,121.13 × 53,514.82
  4. Step 4: Simplify right side
    103,466.53x = 8,301,279,350.15
  5. Step 5: Solve for x
    x = 8,301,279,350.15/103,466.53
  6. Step 6: Final answer
    x = 80,231.54

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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.