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Finding the Fourth Proportional to 328,676.86, 492,965.82 and 104,008.06

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Solution

The fourth proportional to 328,676.86, 492,965.82 and 104,008.06 is: 155,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,676.86 : 492,965.82 = 104,008.06 : x
  2. Step 2: Convert to fraction form
    328,676.86/492,965.82 = 104,008.06/x
  3. Step 3: Cross multiply
    328,676.86x = 492,965.82 × 104,008.06
  4. Step 4: Simplify right side
    328,676.86x = 51,272,418,584.51
  5. Step 5: Solve for x
    x = 51,272,418,584.51/328,676.86
  6. Step 6: Final answer
    x = 155,996.44

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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.