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Finding the Fourth Proportional to 79,275.81, 118,930.41 and 29,356.32

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Solution

The fourth proportional to 79,275.81, 118,930.41 and 29,356.32 is: 44,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,275.81 : 118,930.41 = 29,356.32 : x
  2. Step 2: Convert to fraction form
    79,275.81/118,930.41 = 29,356.32/x
  3. Step 3: Cross multiply
    79,275.81x = 118,930.41 × 29,356.32
  4. Step 4: Simplify right side
    79,275.81x = 3,491,359,173.69
  5. Step 5: Solve for x
    x = 3,491,359,173.69/79,275.81
  6. Step 6: Final answer
    x = 44,040.66

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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.