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Finding the Fourth Proportional to 336,305.36, 504,531.84 and 99,666.56

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Solution

The fourth proportional to 336,305.36, 504,531.84 and 99,666.56 is: 149,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,305.36 : 504,531.84 = 99,666.56 : x
  2. Step 2: Convert to fraction form
    336,305.36/504,531.84 = 99,666.56/x
  3. Step 3: Cross multiply
    336,305.36x = 504,531.84 × 99,666.56
  4. Step 4: Simplify right side
    336,305.36x = 50,284,952,903.27
  5. Step 5: Solve for x
    x = 50,284,952,903.27/336,305.36
  6. Step 6: Final answer
    x = 149,521.71

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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.