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Finding the Fourth Proportional to 118,887.72, 178,354.89 and 44,008.44

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Solution

The fourth proportional to 118,887.72, 178,354.89 and 44,008.44 is: 66,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,887.72 : 178,354.89 = 44,008.44 : x
  2. Step 2: Convert to fraction form
    118,887.72/178,354.89 = 44,008.44/x
  3. Step 3: Cross multiply
    118,887.72x = 178,354.89 × 44,008.44
  4. Step 4: Simplify right side
    118,887.72x = 7,849,120,475.27
  5. Step 5: Solve for x
    x = 7,849,120,475.27/118,887.72
  6. Step 6: Final answer
    x = 66,021.29

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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.