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Finding the Fourth Proportional to 101,214.48, 151,821.90 and 31,093.32

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Solution

The fourth proportional to 101,214.48, 151,821.90 and 31,093.32 is: 46,640.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,214.48 : 151,821.90 = 31,093.32 : x
  2. Step 2: Convert to fraction form
    101,214.48/151,821.90 = 31,093.32/x
  3. Step 3: Cross multiply
    101,214.48x = 151,821.90 × 31,093.32
  4. Step 4: Simplify right side
    101,214.48x = 4,720,646,919.71
  5. Step 5: Solve for x
    x = 4,720,646,919.71/101,214.48
  6. Step 6: Final answer
    x = 46,640.04

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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.