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Finding the Fourth Proportional to 79,236.88, 109,347.75 and 43,426.12

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Solution

The fourth proportional to 79,236.88, 109,347.75 and 43,426.12 is: 59,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,236.88 : 109,347.75 = 43,426.12 : x
  2. Step 2: Convert to fraction form
    79,236.88/109,347.75 = 43,426.12/x
  3. Step 3: Cross multiply
    79,236.88x = 109,347.75 × 43,426.12
  4. Step 4: Simplify right side
    79,236.88x = 4,748,548,513.23
  5. Step 5: Solve for x
    x = 4,748,548,513.23/79,236.88
  6. Step 6: Final answer
    x = 59,928.51

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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.