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Finding the Fourth Proportional to 241,128.81, 361,689.57 and 100,887.44

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Solution

The fourth proportional to 241,128.81, 361,689.57 and 100,887.44 is: 151,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,128.81 : 361,689.57 = 100,887.44 : x
  2. Step 2: Convert to fraction form
    241,128.81/361,689.57 = 100,887.44/x
  3. Step 3: Cross multiply
    241,128.81x = 361,689.57 × 100,887.44
  4. Step 4: Simplify right side
    241,128.81x = 36,489,932,983.55
  5. Step 5: Solve for x
    x = 36,489,932,983.55/241,128.81
  6. Step 6: Final answer
    x = 151,329.63

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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.