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Finding the Fourth Proportional to 75,381.54, 104,028.50 and 41,392.22

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Solution

The fourth proportional to 75,381.54, 104,028.50 and 41,392.22 is: 57,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,381.54 : 104,028.50 = 41,392.22 : x
  2. Step 2: Convert to fraction form
    75,381.54/104,028.50 = 41,392.22/x
  3. Step 3: Cross multiply
    75,381.54x = 104,028.50 × 41,392.22
  4. Step 4: Simplify right side
    75,381.54x = 4,305,970,038.13
  5. Step 5: Solve for x
    x = 4,305,970,038.13/75,381.54
  6. Step 6: Final answer
    x = 57,122.34

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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.