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Finding the Fourth Proportional to 79,886.61, 119,829.96 and 27,296.61

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Solution

The fourth proportional to 79,886.61, 119,829.96 and 27,296.61 is: 40,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,886.61 : 119,829.96 = 27,296.61 : x
  2. Step 2: Convert to fraction form
    79,886.61/119,829.96 = 27,296.61/x
  3. Step 3: Cross multiply
    79,886.61x = 119,829.96 × 27,296.61
  4. Step 4: Simplify right side
    79,886.61x = 3,270,951,547.95
  5. Step 5: Solve for x
    x = 3,270,951,547.95/79,886.61
  6. Step 6: Final answer
    x = 40,944.93

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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.