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Finding the Fourth Proportional to 79,378.38, 109,544.18 and 43,568.08

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Solution

The fourth proportional to 79,378.38, 109,544.18 and 43,568.08 is: 60,125.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.38 : 109,544.18 = 43,568.08 : x
  2. Step 2: Convert to fraction form
    79,378.38/109,544.18 = 43,568.08/x
  3. Step 3: Cross multiply
    79,378.38x = 109,544.18 × 43,568.08
  4. Step 4: Simplify right side
    79,378.38x = 4,772,629,597.77
  5. Step 5: Solve for x
    x = 4,772,629,597.77/79,378.38
  6. Step 6: Final answer
    x = 60,125.06

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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.