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Finding the Fourth Proportional to 118,676.52, 177,891.72 and 74,201.16

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Solution

The fourth proportional to 118,676.52, 177,891.72 and 74,201.16 is: 111,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,676.52 : 177,891.72 = 74,201.16 : x
  2. Step 2: Convert to fraction form
    118,676.52/177,891.72 = 74,201.16/x
  3. Step 3: Cross multiply
    118,676.52x = 177,891.72 × 74,201.16
  4. Step 4: Simplify right side
    118,676.52x = 13,199,771,978.40
  5. Step 5: Solve for x
    x = 13,199,771,978.40/118,676.52
  6. Step 6: Final answer
    x = 111,224.80

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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.