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Finding the Fourth Proportional to 74,874.81, 103,315.03 and 44,243.64

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Solution

The fourth proportional to 74,874.81, 103,315.03 and 44,243.64 is: 61,049.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,874.81 : 103,315.03 = 44,243.64 : x
  2. Step 2: Convert to fraction form
    74,874.81/103,315.03 = 44,243.64/x
  3. Step 3: Cross multiply
    74,874.81x = 103,315.03 × 44,243.64
  4. Step 4: Simplify right side
    74,874.81x = 4,571,032,477.33
  5. Step 5: Solve for x
    x = 4,571,032,477.33/74,874.81
  6. Step 6: Final answer
    x = 61,049.01

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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.