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Finding the Fourth Proportional to 79,803.02, 110,128.14 and 43,993.64

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Solution

The fourth proportional to 79,803.02, 110,128.14 and 43,993.64 is: 60,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,803.02 : 110,128.14 = 43,993.64 : x
  2. Step 2: Convert to fraction form
    79,803.02/110,128.14 = 43,993.64/x
  3. Step 3: Cross multiply
    79,803.02x = 110,128.14 × 43,993.64
  4. Step 4: Simplify right side
    79,803.02x = 4,844,937,745.03
  5. Step 5: Solve for x
    x = 4,844,937,745.03/79,803.02
  6. Step 6: Final answer
    x = 60,711.21

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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.