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Finding the Fourth Proportional to 79,944.92, 110,338.43 and 47,681.60

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Solution

The fourth proportional to 79,944.92, 110,338.43 and 47,681.60 is: 65,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,944.92 : 110,338.43 = 47,681.60 : x
  2. Step 2: Convert to fraction form
    79,944.92/110,338.43 = 47,681.60/x
  3. Step 3: Cross multiply
    79,944.92x = 110,338.43 × 47,681.60
  4. Step 4: Simplify right side
    79,944.92x = 5,261,112,921.33
  5. Step 5: Solve for x
    x = 5,261,112,921.33/79,944.92
  6. Step 6: Final answer
    x = 65,809.23

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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.