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Finding the Fourth Proportional to 75,213.32, 103,799.22 and 41,681.48

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Solution

The fourth proportional to 75,213.32, 103,799.22 and 41,681.48 is: 57,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,213.32 : 103,799.22 = 41,681.48 : x
  2. Step 2: Convert to fraction form
    75,213.32/103,799.22 = 41,681.48/x
  3. Step 3: Cross multiply
    75,213.32x = 103,799.22 × 41,681.48
  4. Step 4: Simplify right side
    75,213.32x = 4,326,505,112.45
  5. Step 5: Solve for x
    x = 4,326,505,112.45/75,213.32
  6. Step 6: Final answer
    x = 57,523.12

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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.