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Finding the Fourth Proportional to 113,493.50, 156,622.12 and 63,193.58

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Solution

The fourth proportional to 113,493.50, 156,622.12 and 63,193.58 is: 87,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,493.50 : 156,622.12 = 63,193.58 : x
  2. Step 2: Convert to fraction form
    113,493.50/156,622.12 = 63,193.58/x
  3. Step 3: Cross multiply
    113,493.50x = 156,622.12 × 63,193.58
  4. Step 4: Simplify right side
    113,493.50x = 9,897,512,469.99
  5. Step 5: Solve for x
    x = 9,897,512,469.99/113,493.50
  6. Step 6: Final answer
    x = 87,207.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.