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Finding the Fourth Proportional to 75,319.44, 103,940.84 and 41,785.44

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Solution

The fourth proportional to 75,319.44, 103,940.84 and 41,785.44 is: 57,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,319.44 : 103,940.84 = 41,785.44 : x
  2. Step 2: Convert to fraction form
    75,319.44/103,940.84 = 41,785.44/x
  3. Step 3: Cross multiply
    75,319.44x = 103,940.84 × 41,785.44
  4. Step 4: Simplify right side
    75,319.44x = 4,343,213,733.37
  5. Step 5: Solve for x
    x = 4,343,213,733.37/75,319.44
  6. Step 6: Final answer
    x = 57,663.91

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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.