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Finding the Fourth Proportional to 75,160.45, 103,721.47 and 41,169.51

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Solution

The fourth proportional to 75,160.45, 103,721.47 and 41,169.51 is: 56,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,160.45 : 103,721.47 = 41,169.51 : x
  2. Step 2: Convert to fraction form
    75,160.45/103,721.47 = 41,169.51/x
  3. Step 3: Cross multiply
    75,160.45x = 103,721.47 × 41,169.51
  4. Step 4: Simplify right side
    75,160.45x = 4,270,161,993.46
  5. Step 5: Solve for x
    x = 4,270,161,993.46/75,160.45
  6. Step 6: Final answer
    x = 56,813.95

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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.