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Finding the Fourth Proportional to 79,378.73, 119,076.54 and 23,219.13

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Solution

The fourth proportional to 79,378.73, 119,076.54 and 23,219.13 is: 34,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.73 : 119,076.54 = 23,219.13 : x
  2. Step 2: Convert to fraction form
    79,378.73/119,076.54 = 23,219.13/x
  3. Step 3: Cross multiply
    79,378.73x = 119,076.54 × 23,219.13
  4. Step 4: Simplify right side
    79,378.73x = 2,764,853,066.83
  5. Step 5: Solve for x
    x = 2,764,853,066.83/79,378.73
  6. Step 6: Final answer
    x = 34,831.16

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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.