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Finding the Fourth Proportional to 336,424.66, 504,634.60 and 123,207.20

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Solution

The fourth proportional to 336,424.66, 504,634.60 and 123,207.20 is: 184,809.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,424.66 : 504,634.60 = 123,207.20 : x
  2. Step 2: Convert to fraction form
    336,424.66/504,634.60 = 123,207.20/x
  3. Step 3: Cross multiply
    336,424.66x = 504,634.60 × 123,207.20
  4. Step 4: Simplify right side
    336,424.66x = 62,174,612,949.91
  5. Step 5: Solve for x
    x = 62,174,612,949.91/336,424.66
  6. Step 6: Final answer
    x = 184,809.92

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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.