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Finding the Fourth Proportional to 79,371.81, 119,084.90 and 49,754.16

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Solution

The fourth proportional to 79,371.81, 119,084.90 and 49,754.16 is: 74,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,371.81 : 119,084.90 = 49,754.16 : x
  2. Step 2: Convert to fraction form
    79,371.81/119,084.90 = 49,754.16/x
  3. Step 3: Cross multiply
    79,371.81x = 119,084.90 × 49,754.16
  4. Step 4: Simplify right side
    79,371.81x = 5,924,968,919.41
  5. Step 5: Solve for x
    x = 5,924,968,919.41/79,371.81
  6. Step 6: Final answer
    x = 74,648.28

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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.