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Finding the Fourth Proportional to 104,583.40, 156,615.90 and 83,847.40

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Solution

The fourth proportional to 104,583.40, 156,615.90 and 83,847.40 is: 125,563.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,583.40 : 156,615.90 = 83,847.40 : x
  2. Step 2: Convert to fraction form
    104,583.40/156,615.90 = 83,847.40/x
  3. Step 3: Cross multiply
    104,583.40x = 156,615.90 × 83,847.40
  4. Step 4: Simplify right side
    104,583.40x = 13,131,836,013.66
  5. Step 5: Solve for x
    x = 13,131,836,013.66/104,583.40
  6. Step 6: Final answer
    x = 125,563.29

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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.