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Finding the Fourth Proportional to 74,851.78, 103,292.85 and 44,621.50

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Solution

The fourth proportional to 74,851.78, 103,292.85 and 44,621.50 is: 61,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,851.78 : 103,292.85 = 44,621.50 : x
  2. Step 2: Convert to fraction form
    74,851.78/103,292.85 = 44,621.50/x
  3. Step 3: Cross multiply
    74,851.78x = 103,292.85 × 44,621.50
  4. Step 4: Simplify right side
    74,851.78x = 4,609,081,906.28
  5. Step 5: Solve for x
    x = 4,609,081,906.28/74,851.78
  6. Step 6: Final answer
    x = 61,576.12

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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.