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Finding the Fourth Proportional to 65,866.20, 98,511.30 and 58,896.60

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Solution

The fourth proportional to 65,866.20, 98,511.30 and 58,896.60 is: 88,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,866.20 : 98,511.30 = 58,896.60 : x
  2. Step 2: Convert to fraction form
    65,866.20/98,511.30 = 58,896.60/x
  3. Step 3: Cross multiply
    65,866.20x = 98,511.30 × 58,896.60
  4. Step 4: Simplify right side
    65,866.20x = 5,801,980,631.58
  5. Step 5: Solve for x
    x = 5,801,980,631.58/65,866.20
  6. Step 6: Final answer
    x = 88,087.37

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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.