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Finding the Fourth Proportional to 79,193.05, 109,289.12 and 43,383.05

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Solution

The fourth proportional to 79,193.05, 109,289.12 and 43,383.05 is: 59,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,193.05 : 109,289.12 = 43,383.05 : x
  2. Step 2: Convert to fraction form
    79,193.05/109,289.12 = 43,383.05/x
  3. Step 3: Cross multiply
    79,193.05x = 109,289.12 × 43,383.05
  4. Step 4: Simplify right side
    79,193.05x = 4,741,295,216.25
  5. Step 5: Solve for x
    x = 4,741,295,216.25/79,193.05
  6. Step 6: Final answer
    x = 59,870.10

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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.