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Finding the Fourth Proportional to 75,061.70, 103,584.25 and 41,069.79

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Solution

The fourth proportional to 75,061.70, 103,584.25 and 41,069.79 is: 56,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,061.70 : 103,584.25 = 41,069.79 : x
  2. Step 2: Convert to fraction form
    75,061.70/103,584.25 = 41,069.79/x
  3. Step 3: Cross multiply
    75,061.70x = 103,584.25 × 41,069.79
  4. Step 4: Simplify right side
    75,061.70x = 4,254,183,292.13
  5. Step 5: Solve for x
    x = 4,254,183,292.13/75,061.70
  6. Step 6: Final answer
    x = 56,675.82

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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.