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Finding the Fourth Proportional to 74,916.84, 112,255.44 and 52,469.84

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Solution

The fourth proportional to 74,916.84, 112,255.44 and 52,469.84 is: 78,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.84 : 112,255.44 = 52,469.84 : x
  2. Step 2: Convert to fraction form
    74,916.84/112,255.44 = 52,469.84/x
  3. Step 3: Cross multiply
    74,916.84x = 112,255.44 × 52,469.84
  4. Step 4: Simplify right side
    74,916.84x = 5,890,024,975.93
  5. Step 5: Solve for x
    x = 5,890,024,975.93/74,916.84
  6. Step 6: Final answer
    x = 78,620.84

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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.