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Finding the Fourth Proportional to 79,375.56, 109,536.50 and 43,565.32

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Solution

The fourth proportional to 79,375.56, 109,536.50 and 43,565.32 is: 60,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,375.56 : 109,536.50 = 43,565.32 : x
  2. Step 2: Convert to fraction form
    79,375.56/109,536.50 = 43,565.32/x
  3. Step 3: Cross multiply
    79,375.56x = 109,536.50 × 43,565.32
  4. Step 4: Simplify right side
    79,375.56x = 4,771,992,674.18
  5. Step 5: Solve for x
    x = 4,771,992,674.18/79,375.56
  6. Step 6: Final answer
    x = 60,119.17

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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.