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Finding the Fourth Proportional to 104,640.30, 157,046.85 and 48,566.70

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Solution

The fourth proportional to 104,640.30, 157,046.85 and 48,566.70 is: 72,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,640.30 : 157,046.85 = 48,566.70 : x
  2. Step 2: Convert to fraction form
    104,640.30/157,046.85 = 48,566.70/x
  3. Step 3: Cross multiply
    104,640.30x = 157,046.85 × 48,566.70
  4. Step 4: Simplify right side
    104,640.30x = 7,627,247,249.90
  5. Step 5: Solve for x
    x = 7,627,247,249.90/104,640.30
  6. Step 6: Final answer
    x = 72,890.15

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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.