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Finding the Fourth Proportional to 74,993.88, 103,450.62 and 48,106.48

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Solution

The fourth proportional to 74,993.88, 103,450.62 and 48,106.48 is: 66,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,993.88 : 103,450.62 = 48,106.48 : x
  2. Step 2: Convert to fraction form
    74,993.88/103,450.62 = 48,106.48/x
  3. Step 3: Cross multiply
    74,993.88x = 103,450.62 × 48,106.48
  4. Step 4: Simplify right side
    74,993.88x = 4,976,645,182.02
  5. Step 5: Solve for x
    x = 4,976,645,182.02/74,993.88
  6. Step 6: Final answer
    x = 66,360.68

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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.