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Finding the Fourth Proportional to 86,795.82, 130,059.78 and 58,605.39

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Solution

The fourth proportional to 86,795.82, 130,059.78 and 58,605.39 is: 87,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,795.82 : 130,059.78 = 58,605.39 : x
  2. Step 2: Convert to fraction form
    86,795.82/130,059.78 = 58,605.39/x
  3. Step 3: Cross multiply
    86,795.82x = 130,059.78 × 58,605.39
  4. Step 4: Simplify right side
    86,795.82x = 7,622,203,910.44
  5. Step 5: Solve for x
    x = 7,622,203,910.44/86,795.82
  6. Step 6: Final answer
    x = 87,817.64

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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.