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Finding the Fourth Proportional to 331,967.72, 458,154.18 and 188,749.22

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Solution

The fourth proportional to 331,967.72, 458,154.18 and 188,749.22 is: 260,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,967.72 : 458,154.18 = 188,749.22 : x
  2. Step 2: Convert to fraction form
    331,967.72/458,154.18 = 188,749.22/x
  3. Step 3: Cross multiply
    331,967.72x = 458,154.18 × 188,749.22
  4. Step 4: Simplify right side
    331,967.72x = 86,476,244,114.74
  5. Step 5: Solve for x
    x = 86,476,244,114.74/331,967.72
  6. Step 6: Final answer
    x = 260,495.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.