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Finding the Fourth Proportional to 79,287.54, 109,414.44 and 45,295.89

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Solution

The fourth proportional to 79,287.54, 109,414.44 and 45,295.89 is: 62,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,287.54 : 109,414.44 = 45,295.89 : x
  2. Step 2: Convert to fraction form
    79,287.54/109,414.44 = 45,295.89/x
  3. Step 3: Cross multiply
    79,287.54x = 109,414.44 × 45,295.89
  4. Step 4: Simplify right side
    79,287.54x = 4,956,024,438.65
  5. Step 5: Solve for x
    x = 4,956,024,438.65/79,287.54
  6. Step 6: Final answer
    x = 62,506.98

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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.