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Finding the Fourth Proportional to 86,245.22, 118,979.07 and 62,334.02

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Solution

The fourth proportional to 86,245.22, 118,979.07 and 62,334.02 is: 85,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.22 : 118,979.07 = 62,334.02 : x
  2. Step 2: Convert to fraction form
    86,245.22/118,979.07 = 62,334.02/x
  3. Step 3: Cross multiply
    86,245.22x = 118,979.07 × 62,334.02
  4. Step 4: Simplify right side
    86,245.22x = 7,416,443,728.96
  5. Step 5: Solve for x
    x = 7,416,443,728.96/86,245.22
  6. Step 6: Final answer
    x = 85,992.52

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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.