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Finding the Fourth Proportional to 104,476.80, 156,738.84 and 34,356.72

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Solution

The fourth proportional to 104,476.80, 156,738.84 and 34,356.72 is: 51,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,476.80 : 156,738.84 = 34,356.72 : x
  2. Step 2: Convert to fraction form
    104,476.80/156,738.84 = 34,356.72/x
  3. Step 3: Cross multiply
    104,476.80x = 156,738.84 × 34,356.72
  4. Step 4: Simplify right side
    104,476.80x = 5,385,032,439.00
  5. Step 5: Solve for x
    x = 5,385,032,439.00/104,476.80
  6. Step 6: Final answer
    x = 51,542.85

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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.