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Finding the Fourth Proportional to 79,932.69, 110,349.41 and 51,654.51

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Solution

The fourth proportional to 79,932.69, 110,349.41 and 51,654.51 is: 71,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,932.69 : 110,349.41 = 51,654.51 : x
  2. Step 2: Convert to fraction form
    79,932.69/110,349.41 = 51,654.51/x
  3. Step 3: Cross multiply
    79,932.69x = 110,349.41 × 51,654.51
  4. Step 4: Simplify right side
    79,932.69x = 5,700,044,444.07
  5. Step 5: Solve for x
    x = 5,700,044,444.07/79,932.69
  6. Step 6: Final answer
    x = 71,310.55

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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.