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Finding the Fourth Proportional to 79,396.26, 109,568.58 and 45,407.88

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Solution

The fourth proportional to 79,396.26, 109,568.58 and 45,407.88 is: 62,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,396.26 : 109,568.58 = 45,407.88 : x
  2. Step 2: Convert to fraction form
    79,396.26/109,568.58 = 45,407.88/x
  3. Step 3: Cross multiply
    79,396.26x = 109,568.58 × 45,407.88
  4. Step 4: Simplify right side
    79,396.26x = 4,975,276,932.41
  5. Step 5: Solve for x
    x = 4,975,276,932.41/79,396.26
  6. Step 6: Final answer
    x = 62,663.87

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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.