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Finding the Fourth Proportional to 104,358.84, 156,505.41 and 34,221.78

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Solution

The fourth proportional to 104,358.84, 156,505.41 and 34,221.78 is: 51,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,358.84 : 156,505.41 = 34,221.78 : x
  2. Step 2: Convert to fraction form
    104,358.84/156,505.41 = 34,221.78/x
  3. Step 3: Cross multiply
    104,358.84x = 156,505.41 × 34,221.78
  4. Step 4: Simplify right side
    104,358.84x = 5,355,893,709.83
  5. Step 5: Solve for x
    x = 5,355,893,709.83/104,358.84
  6. Step 6: Final answer
    x = 51,321.90

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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.