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Finding the Fourth Proportional to 328,956.88, 453,964.28 and 192,993.24

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Solution

The fourth proportional to 328,956.88, 453,964.28 and 192,993.24 is: 266,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,956.88 : 453,964.28 = 192,993.24 : x
  2. Step 2: Convert to fraction form
    328,956.88/453,964.28 = 192,993.24/x
  3. Step 3: Cross multiply
    328,956.88x = 453,964.28 × 192,993.24
  4. Step 4: Simplify right side
    328,956.88x = 87,612,037,241.47
  5. Step 5: Solve for x
    x = 87,612,037,241.47/328,956.88
  6. Step 6: Final answer
    x = 266,332.89

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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.