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Finding the Fourth Proportional to 79,340.26, 109,486.69 and 43,529.50

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Solution

The fourth proportional to 79,340.26, 109,486.69 and 43,529.50 is: 60,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,340.26 : 109,486.69 = 43,529.50 : x
  2. Step 2: Convert to fraction form
    79,340.26/109,486.69 = 43,529.50/x
  3. Step 3: Cross multiply
    79,340.26x = 109,486.69 × 43,529.50
  4. Step 4: Simplify right side
    79,340.26x = 4,765,900,900.39
  5. Step 5: Solve for x
    x = 4,765,900,900.39/79,340.26
  6. Step 6: Final answer
    x = 60,069.14

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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.