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Finding the Fourth Proportional to 65,622.40, 98,532.60 and 52,435.60

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Solution

The fourth proportional to 65,622.40, 98,532.60 and 52,435.60 is: 78,732.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,622.40 : 98,532.60 = 52,435.60 : x
  2. Step 2: Convert to fraction form
    65,622.40/98,532.60 = 52,435.60/x
  3. Step 3: Cross multiply
    65,622.40x = 98,532.60 × 52,435.60
  4. Step 4: Simplify right side
    65,622.40x = 5,166,616,000.56
  5. Step 5: Solve for x
    x = 5,166,616,000.56/65,622.40
  6. Step 6: Final answer
    x = 78,732.51

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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.