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Finding the Fourth Proportional to 75,255.94, 103,857.88 and 41,721.94

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Solution

The fourth proportional to 75,255.94, 103,857.88 and 41,721.94 is: 57,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,255.94 : 103,857.88 = 41,721.94 : x
  2. Step 2: Convert to fraction form
    75,255.94/103,857.88 = 41,721.94/x
  3. Step 3: Cross multiply
    75,255.94x = 103,857.88 × 41,721.94
  4. Step 4: Simplify right side
    75,255.94x = 4,333,152,237.89
  5. Step 5: Solve for x
    x = 4,333,152,237.89/75,255.94
  6. Step 6: Final answer
    x = 57,578.87

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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.