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Finding the Fourth Proportional to 74,644.29, 103,030.29 and 49,169.25

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Solution

The fourth proportional to 74,644.29, 103,030.29 and 49,169.25 is: 67,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,644.29 : 103,030.29 = 49,169.25 : x
  2. Step 2: Convert to fraction form
    74,644.29/103,030.29 = 49,169.25/x
  3. Step 3: Cross multiply
    74,644.29x = 103,030.29 × 49,169.25
  4. Step 4: Simplify right side
    74,644.29x = 5,065,922,086.58
  5. Step 5: Solve for x
    x = 5,065,922,086.58/74,644.29
  6. Step 6: Final answer
    x = 67,867.51

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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.