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Finding the Fourth Proportional to 79,245.97, 109,360.19 and 43,436.68

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Solution

The fourth proportional to 79,245.97, 109,360.19 and 43,436.68 is: 59,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.97 : 109,360.19 = 43,436.68 : x
  2. Step 2: Convert to fraction form
    79,245.97/109,360.19 = 43,436.68/x
  3. Step 3: Cross multiply
    79,245.97x = 109,360.19 × 43,436.68
  4. Step 4: Simplify right side
    79,245.97x = 4,750,243,412.96
  5. Step 5: Solve for x
    x = 4,750,243,412.96/79,245.97
  6. Step 6: Final answer
    x = 59,943.03

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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.