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Finding the Fourth Proportional to 366,939.99, 550,385.22 and 100,678.20

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Solution

The fourth proportional to 366,939.99, 550,385.22 and 100,678.20 is: 151,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.99 : 550,385.22 = 100,678.20 : x
  2. Step 2: Convert to fraction form
    366,939.99/550,385.22 = 100,678.20/x
  3. Step 3: Cross multiply
    366,939.99x = 550,385.22 × 100,678.20
  4. Step 4: Simplify right side
    366,939.99x = 55,411,793,256.20
  5. Step 5: Solve for x
    x = 55,411,793,256.20/366,939.99
  6. Step 6: Final answer
    x = 151,010.51

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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.