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Finding the Fourth Proportional to 79,608.60, 109,857.54 and 43,798.60

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Solution

The fourth proportional to 79,608.60, 109,857.54 and 43,798.60 is: 60,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,608.60 : 109,857.54 = 43,798.60 : x
  2. Step 2: Convert to fraction form
    79,608.60/109,857.54 = 43,798.60/x
  3. Step 3: Cross multiply
    79,608.60x = 109,857.54 × 43,798.60
  4. Step 4: Simplify right side
    79,608.60x = 4,811,606,451.44
  5. Step 5: Solve for x
    x = 4,811,606,451.44/79,608.60
  6. Step 6: Final answer
    x = 60,440.79

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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.