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Finding the Fourth Proportional to 74,531.78, 102,817.72 and 44,295.70

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Solution

The fourth proportional to 74,531.78, 102,817.72 and 44,295.70 is: 61,106.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.78 : 102,817.72 = 44,295.70 : x
  2. Step 2: Convert to fraction form
    74,531.78/102,817.72 = 44,295.70/x
  3. Step 3: Cross multiply
    74,531.78x = 102,817.72 × 44,295.70
  4. Step 4: Simplify right side
    74,531.78x = 4,554,382,879.80
  5. Step 5: Solve for x
    x = 4,554,382,879.80/74,531.78
  6. Step 6: Final answer
    x = 61,106.59

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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.