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Finding the Fourth Proportional to 78,922.44, 118,384.74 and 44,083.80

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Solution

The fourth proportional to 78,922.44, 118,384.74 and 44,083.80 is: 66,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,922.44 : 118,384.74 = 44,083.80 : x
  2. Step 2: Convert to fraction form
    78,922.44/118,384.74 = 44,083.80/x
  3. Step 3: Cross multiply
    78,922.44x = 118,384.74 × 44,083.80
  4. Step 4: Simplify right side
    78,922.44x = 5,218,849,201.21
  5. Step 5: Solve for x
    x = 5,218,849,201.21/78,922.44
  6. Step 6: Final answer
    x = 66,126.30

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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.