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Finding the Fourth Proportional to 65,270.20, 97,905.30 and 61,900.60

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Solution

The fourth proportional to 65,270.20, 97,905.30 and 61,900.60 is: 92,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,270.20 : 97,905.30 = 61,900.60 : x
  2. Step 2: Convert to fraction form
    65,270.20/97,905.30 = 61,900.60/x
  3. Step 3: Cross multiply
    65,270.20x = 97,905.30 × 61,900.60
  4. Step 4: Simplify right side
    65,270.20x = 6,060,396,813.18
  5. Step 5: Solve for x
    x = 6,060,396,813.18/65,270.20
  6. Step 6: Final answer
    x = 92,850.90

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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.