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Finding the Fourth Proportional to 74,849.62, 103,292.86 and 41,315.62

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Solution

The fourth proportional to 74,849.62, 103,292.86 and 41,315.62 is: 57,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,849.62 : 103,292.86 = 41,315.62 : x
  2. Step 2: Convert to fraction form
    74,849.62/103,292.86 = 41,315.62/x
  3. Step 3: Cross multiply
    74,849.62x = 103,292.86 × 41,315.62
  4. Step 4: Simplify right side
    74,849.62x = 4,267,608,036.01
  5. Step 5: Solve for x
    x = 4,267,608,036.01/74,849.62
  6. Step 6: Final answer
    x = 57,015.76

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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.