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Finding the Fourth Proportional to 104,302.80, 156,540.60 and 48,229.20

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Solution

The fourth proportional to 104,302.80, 156,540.60 and 48,229.20 is: 72,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,302.80 : 156,540.60 = 48,229.20 : x
  2. Step 2: Convert to fraction form
    104,302.80/156,540.60 = 48,229.20/x
  3. Step 3: Cross multiply
    104,302.80x = 156,540.60 × 48,229.20
  4. Step 4: Simplify right side
    104,302.80x = 7,549,827,905.52
  5. Step 5: Solve for x
    x = 7,549,827,905.52/104,302.80
  6. Step 6: Final answer
    x = 72,383.75

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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.