Home / 217,680.81-326,541.83-84,571.34

Finding the Fourth Proportional to 217,680.81, 326,541.83 and 84,571.34

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Solution

The fourth proportional to 217,680.81, 326,541.83 and 84,571.34 is: 126,865.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,680.81 : 326,541.83 = 84,571.34 : x
  2. Step 2: Convert to fraction form
    217,680.81/326,541.83 = 84,571.34/x
  3. Step 3: Cross multiply
    217,680.81x = 326,541.83 × 84,571.34
  4. Step 4: Simplify right side
    217,680.81x = 27,616,078,073.59
  5. Step 5: Solve for x
    x = 27,616,078,073.59/217,680.81
  6. Step 6: Final answer
    x = 126,865.01

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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.