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Finding the Fourth Proportional to 75,509.97, 104,201.55 and 41,518.43

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Solution

The fourth proportional to 75,509.97, 104,201.55 and 41,518.43 is: 57,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,509.97 : 104,201.55 = 41,518.43 : x
  2. Step 2: Convert to fraction form
    75,509.97/104,201.55 = 41,518.43/x
  3. Step 3: Cross multiply
    75,509.97x = 104,201.55 × 41,518.43
  4. Step 4: Simplify right side
    75,509.97x = 4,326,284,238.56
  5. Step 5: Solve for x
    x = 4,326,284,238.56/75,509.97
  6. Step 6: Final answer
    x = 57,294.21

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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.