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Finding the Fourth Proportional to 74,649.38, 111,919.17 and 35,185.10

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Solution

The fourth proportional to 74,649.38, 111,919.17 and 35,185.10 is: 52,751.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,649.38 : 111,919.17 = 35,185.10 : x
  2. Step 2: Convert to fraction form
    74,649.38/111,919.17 = 35,185.10/x
  3. Step 3: Cross multiply
    74,649.38x = 111,919.17 × 35,185.10
  4. Step 4: Simplify right side
    74,649.38x = 3,937,887,188.37
  5. Step 5: Solve for x
    x = 3,937,887,188.37/74,649.38
  6. Step 6: Final answer
    x = 52,751.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.