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Finding the Fourth Proportional to 79,977.39, 110,365.79 and 43,677.63

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Solution

The fourth proportional to 79,977.39, 110,365.79 and 43,677.63 is: 60,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,977.39 : 110,365.79 = 43,677.63 : x
  2. Step 2: Convert to fraction form
    79,977.39/110,365.79 = 43,677.63/x
  3. Step 3: Cross multiply
    79,977.39x = 110,365.79 × 43,677.63
  4. Step 4: Simplify right side
    79,977.39x = 4,820,515,921.89
  5. Step 5: Solve for x
    x = 4,820,515,921.89/79,977.39
  6. Step 6: Final answer
    x = 60,273.48

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1.5x scale

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.