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Finding the Fourth Proportional to 117,323.98, 162,040.74 and 79,532.62

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Solution

The fourth proportional to 117,323.98, 162,040.74 and 79,532.62 is: 109,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,323.98 : 162,040.74 = 79,532.62 : x
  2. Step 2: Convert to fraction form
    117,323.98/162,040.74 = 79,532.62/x
  3. Step 3: Cross multiply
    117,323.98x = 162,040.74 × 79,532.62
  4. Step 4: Simplify right side
    117,323.98x = 12,887,524,598.94
  5. Step 5: Solve for x
    x = 12,887,524,598.94/117,323.98
  6. Step 6: Final answer
    x = 109,845.61

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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.