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Finding the Fourth Proportional to 339,972.64, 469,196.66 and 194,797.68

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Solution

The fourth proportional to 339,972.64, 469,196.66 and 194,797.68 is: 268,840.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,972.64 : 469,196.66 = 194,797.68 : x
  2. Step 2: Convert to fraction form
    339,972.64/469,196.66 = 194,797.68/x
  3. Step 3: Cross multiply
    339,972.64x = 469,196.66 × 194,797.68
  4. Step 4: Simplify right side
    339,972.64x = 91,398,423,792.03
  5. Step 5: Solve for x
    x = 91,398,423,792.03/339,972.64
  6. Step 6: Final answer
    x = 268,840.52

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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.