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Finding the Fourth Proportional to 78,938.98, 108,930.57 and 44,950.94

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Solution

The fourth proportional to 78,938.98, 108,930.57 and 44,950.94 is: 62,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,938.98 : 108,930.57 = 44,950.94 : x
  2. Step 2: Convert to fraction form
    78,938.98/108,930.57 = 44,950.94/x
  3. Step 3: Cross multiply
    78,938.98x = 108,930.57 × 44,950.94
  4. Step 4: Simplify right side
    78,938.98x = 4,896,531,620.00
  5. Step 5: Solve for x
    x = 4,896,531,620.00/78,938.98
  6. Step 6: Final answer
    x = 62,029.32

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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.