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Finding the Fourth Proportional to 103,638.96, 155,458.44 and 29,766.96

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Solution

The fourth proportional to 103,638.96, 155,458.44 and 29,766.96 is: 44,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.96 : 155,458.44 = 29,766.96 : x
  2. Step 2: Convert to fraction form
    103,638.96/155,458.44 = 29,766.96/x
  3. Step 3: Cross multiply
    103,638.96x = 155,458.44 × 29,766.96
  4. Step 4: Simplify right side
    103,638.96x = 4,627,525,165.14
  5. Step 5: Solve for x
    x = 4,627,525,165.14/103,638.96
  6. Step 6: Final answer
    x = 44,650.44

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Similar ratio
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1.5x scale

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.