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Finding the Fourth Proportional to 79,544.64, 119,289.12 and 26,938.56

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Solution

The fourth proportional to 79,544.64, 119,289.12 and 26,938.56 is: 40,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,544.64 : 119,289.12 = 26,938.56 : x
  2. Step 2: Convert to fraction form
    79,544.64/119,289.12 = 26,938.56/x
  3. Step 3: Cross multiply
    79,544.64x = 119,289.12 × 26,938.56
  4. Step 4: Simplify right side
    79,544.64x = 3,213,477,116.47
  5. Step 5: Solve for x
    x = 3,213,477,116.47/79,544.64
  6. Step 6: Final answer
    x = 40,398.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.