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Finding the Fourth Proportional to 79,134.56, 118,552.68 and 61,518.80

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Solution

The fourth proportional to 79,134.56, 118,552.68 and 61,518.80 is: 92,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,134.56 : 118,552.68 = 61,518.80 : x
  2. Step 2: Convert to fraction form
    79,134.56/118,552.68 = 61,518.80/x
  3. Step 3: Cross multiply
    79,134.56x = 118,552.68 × 61,518.80
  4. Step 4: Simplify right side
    79,134.56x = 7,293,218,610.38
  5. Step 5: Solve for x
    x = 7,293,218,610.38/79,134.56
  6. Step 6: Final answer
    x = 92,162.24

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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.