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Finding the Fourth Proportional to 118,615.20, 177,922.92 and 48,494.51

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Solution

The fourth proportional to 118,615.20, 177,922.92 and 48,494.51 is: 72,741.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,615.20 : 177,922.92 = 48,494.51 : x
  2. Step 2: Convert to fraction form
    118,615.20/177,922.92 = 48,494.51/x
  3. Step 3: Cross multiply
    118,615.20x = 177,922.92 × 48,494.51
  4. Step 4: Simplify right side
    118,615.20x = 8,628,285,146.74
  5. Step 5: Solve for x
    x = 8,628,285,146.74/118,615.20
  6. Step 6: Final answer
    x = 72,741.82

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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.