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Finding the Fourth Proportional to 104,456.95, 156,578.17 and 41,251.45

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Solution

The fourth proportional to 104,456.95, 156,578.17 and 41,251.45 is: 61,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,456.95 : 156,578.17 = 41,251.45 : x
  2. Step 2: Convert to fraction form
    104,456.95/156,578.17 = 41,251.45/x
  3. Step 3: Cross multiply
    104,456.95x = 156,578.17 × 41,251.45
  4. Step 4: Simplify right side
    104,456.95x = 6,459,076,550.85
  5. Step 5: Solve for x
    x = 6,459,076,550.85/104,456.95
  6. Step 6: Final answer
    x = 61,834.82

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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.