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Finding the Fourth Proportional to 217,289.64, 325,934.73 and 59,519.46

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Solution

The fourth proportional to 217,289.64, 325,934.73 and 59,519.46 is: 89,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,289.64 : 325,934.73 = 59,519.46 : x
  2. Step 2: Convert to fraction form
    217,289.64/325,934.73 = 59,519.46/x
  3. Step 3: Cross multiply
    217,289.64x = 325,934.73 × 59,519.46
  4. Step 4: Simplify right side
    217,289.64x = 19,399,459,124.85
  5. Step 5: Solve for x
    x = 19,399,459,124.85/217,289.64
  6. Step 6: Final answer
    x = 89,279.26

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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.