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Finding the Fourth Proportional to 118,651.53, 177,976.85 and 47,605.93

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Solution

The fourth proportional to 118,651.53, 177,976.85 and 47,605.93 is: 71,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,651.53 : 177,976.85 = 47,605.93 : x
  2. Step 2: Convert to fraction form
    118,651.53/177,976.85 = 47,605.93/x
  3. Step 3: Cross multiply
    118,651.53x = 177,976.85 × 47,605.93
  4. Step 4: Simplify right side
    118,651.53x = 8,472,752,779.75
  5. Step 5: Solve for x
    x = 8,472,752,779.75/118,651.53
  6. Step 6: Final answer
    x = 71,408.71

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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.