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Finding the Fourth Proportional to 86,053.56, 118,753.20 and 48,327

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Solution

The fourth proportional to 86,053.56, 118,753.20 and 48,327 is: 66,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.56 : 118,753.20 = 48,327 : x
  2. Step 2: Convert to fraction form
    86,053.56/118,753.20 = 48,327/x
  3. Step 3: Cross multiply
    86,053.56x = 118,753.20 × 48,327
  4. Step 4: Simplify right side
    86,053.56x = 5,738,985,896.40
  5. Step 5: Solve for x
    x = 5,738,985,896.40/86,053.56
  6. Step 6: Final answer
    x = 66,690.86

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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.