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Finding the Fourth Proportional to 79,599.28, 109,850.70 and 43,788.64

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Solution

The fourth proportional to 79,599.28, 109,850.70 and 43,788.64 is: 60,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,599.28 : 109,850.70 = 43,788.64 : x
  2. Step 2: Convert to fraction form
    79,599.28/109,850.70 = 43,788.64/x
  3. Step 3: Cross multiply
    79,599.28x = 109,850.70 × 43,788.64
  4. Step 4: Simplify right side
    79,599.28x = 4,810,212,756.05
  5. Step 5: Solve for x
    x = 4,810,212,756.05/79,599.28
  6. Step 6: Final answer
    x = 60,430.36

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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.