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Finding the Fourth Proportional to 86,245.62, 119,021.27 and 47,484.63

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Solution

The fourth proportional to 86,245.62, 119,021.27 and 47,484.63 is: 65,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.62 : 119,021.27 = 47,484.63 : x
  2. Step 2: Convert to fraction form
    86,245.62/119,021.27 = 47,484.63/x
  3. Step 3: Cross multiply
    86,245.62x = 119,021.27 × 47,484.63
  4. Step 4: Simplify right side
    86,245.62x = 5,651,680,372.97
  5. Step 5: Solve for x
    x = 5,651,680,372.97/86,245.62
  6. Step 6: Final answer
    x = 65,530.06

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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.