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Finding the Fourth Proportional to 74,644.81, 111,689.72 and 44,674.02

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Solution

The fourth proportional to 74,644.81, 111,689.72 and 44,674.02 is: 66,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,644.81 : 111,689.72 = 44,674.02 : x
  2. Step 2: Convert to fraction form
    74,644.81/111,689.72 = 44,674.02/x
  3. Step 3: Cross multiply
    74,644.81x = 111,689.72 × 44,674.02
  4. Step 4: Simplify right side
    74,644.81x = 4,989,628,729.23
  5. Step 5: Solve for x
    x = 4,989,628,729.23/74,644.81
  6. Step 6: Final answer
    x = 66,844.95

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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.