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Finding the Fourth Proportional to 79,981.50, 110,374.47 and 46,449.66

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Solution

The fourth proportional to 79,981.50, 110,374.47 and 46,449.66 is: 64,100.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,981.50 : 110,374.47 = 46,449.66 : x
  2. Step 2: Convert to fraction form
    79,981.50/110,374.47 = 46,449.66/x
  3. Step 3: Cross multiply
    79,981.50x = 110,374.47 × 46,449.66
  4. Step 4: Simplify right side
    79,981.50x = 5,126,856,604.18
  5. Step 5: Solve for x
    x = 5,126,856,604.18/79,981.50
  6. Step 6: Final answer
    x = 64,100.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.