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Finding the Fourth Proportional to 74,640.25, 103,003.59 and 41,106.25

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Solution

The fourth proportional to 74,640.25, 103,003.59 and 41,106.25 is: 56,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,640.25 : 103,003.59 = 41,106.25 : x
  2. Step 2: Convert to fraction form
    74,640.25/103,003.59 = 41,106.25/x
  3. Step 3: Cross multiply
    74,640.25x = 103,003.59 × 41,106.25
  4. Step 4: Simplify right side
    74,640.25x = 4,234,091,321.44
  5. Step 5: Solve for x
    x = 4,234,091,321.44/74,640.25
  6. Step 6: Final answer
    x = 56,726.65

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1.5x scale

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.