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Finding the Fourth Proportional to 79,281.58, 118,939.86 and 23,126.08

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Solution

The fourth proportional to 79,281.58, 118,939.86 and 23,126.08 is: 34,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.58 : 118,939.86 = 23,126.08 : x
  2. Step 2: Convert to fraction form
    79,281.58/118,939.86 = 23,126.08/x
  3. Step 3: Cross multiply
    79,281.58x = 118,939.86 × 23,126.08
  4. Step 4: Simplify right side
    79,281.58x = 2,750,612,601.92
  5. Step 5: Solve for x
    x = 2,750,612,601.92/79,281.58
  6. Step 6: Final answer
    x = 34,694.22

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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.