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Finding the Fourth Proportional to 217,544.14, 325,892.17 and 122,483.76

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Solution

The fourth proportional to 217,544.14, 325,892.17 and 122,483.76 is: 183,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,544.14 : 325,892.17 = 122,483.76 : x
  2. Step 2: Convert to fraction form
    217,544.14/325,892.17 = 122,483.76/x
  3. Step 3: Cross multiply
    217,544.14x = 325,892.17 × 122,483.76
  4. Step 4: Simplify right side
    217,544.14x = 39,916,498,336.16
  5. Step 5: Solve for x
    x = 39,916,498,336.16/217,544.14
  6. Step 6: Final answer
    x = 183,486.89

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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.