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Finding the Fourth Proportional to 217,064.24, 325,470.72 and 67,264.64

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Solution

The fourth proportional to 217,064.24, 325,470.72 and 67,264.64 is: 100,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,064.24 : 325,470.72 = 67,264.64 : x
  2. Step 2: Convert to fraction form
    217,064.24/325,470.72 = 67,264.64/x
  3. Step 3: Cross multiply
    217,064.24x = 325,470.72 × 67,264.64
  4. Step 4: Simplify right side
    217,064.24x = 21,892,670,811.34
  5. Step 5: Solve for x
    x = 21,892,670,811.34/217,064.24
  6. Step 6: Final answer
    x = 100,858.03

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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.