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Finding the Fourth Proportional to 79,434.75, 109,620.71 and 43,625.50

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Solution

The fourth proportional to 79,434.75, 109,620.71 and 43,625.50 is: 60,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,434.75 : 109,620.71 = 43,625.50 : x
  2. Step 2: Convert to fraction form
    79,434.75/109,620.71 = 43,625.50/x
  3. Step 3: Cross multiply
    79,434.75x = 109,620.71 × 43,625.50
  4. Step 4: Simplify right side
    79,434.75x = 4,782,258,284.11
  5. Step 5: Solve for x
    x = 4,782,258,284.11/79,434.75
  6. Step 6: Final answer
    x = 60,203.60

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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.