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Finding the Fourth Proportional to 118,062.15, 177,049.47 and 47,917.77

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Solution

The fourth proportional to 118,062.15, 177,049.47 and 47,917.77 is: 71,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,062.15 : 177,049.47 = 47,917.77 : x
  2. Step 2: Convert to fraction form
    118,062.15/177,049.47 = 47,917.77/x
  3. Step 3: Cross multiply
    118,062.15x = 177,049.47 × 47,917.77
  4. Step 4: Simplify right side
    118,062.15x = 8,483,815,782.08
  5. Step 5: Solve for x
    x = 8,483,815,782.08/118,062.15
  6. Step 6: Final answer
    x = 71,858.90

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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.