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Finding the Fourth Proportional to 104,466.80, 156,786.60 and 48,393.20

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Solution

The fourth proportional to 104,466.80, 156,786.60 and 48,393.20 is: 72,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,466.80 : 156,786.60 = 48,393.20 : x
  2. Step 2: Convert to fraction form
    104,466.80/156,786.60 = 48,393.20/x
  3. Step 3: Cross multiply
    104,466.80x = 156,786.60 × 48,393.20
  4. Step 4: Simplify right side
    104,466.80x = 7,587,405,291.12
  5. Step 5: Solve for x
    x = 7,587,405,291.12/104,466.80
  6. Step 6: Final answer
    x = 72,629.82

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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.