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Finding the Fourth Proportional to 79,247.88, 109,362.92 and 43,437.12

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Solution

The fourth proportional to 79,247.88, 109,362.92 and 43,437.12 is: 59,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247.88 : 109,362.92 = 43,437.12 : x
  2. Step 2: Convert to fraction form
    79,247.88/109,362.92 = 43,437.12/x
  3. Step 3: Cross multiply
    79,247.88x = 109,362.92 × 43,437.12
  4. Step 4: Simplify right side
    79,247.88x = 4,750,410,279.59
  5. Step 5: Solve for x
    x = 4,750,410,279.59/79,247.88
  6. Step 6: Final answer
    x = 59,943.69

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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.