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Finding the Fourth Proportional to 371,449.88, 557,147.57 and 118,662.48

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Solution

The fourth proportional to 371,449.88, 557,147.57 and 118,662.48 is: 177,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,449.88 : 557,147.57 = 118,662.48 : x
  2. Step 2: Convert to fraction form
    371,449.88/557,147.57 = 118,662.48/x
  3. Step 3: Cross multiply
    371,449.88x = 557,147.57 × 118,662.48
  4. Step 4: Simplify right side
    371,449.88x = 66,112,511,788.86
  5. Step 5: Solve for x
    x = 66,112,511,788.86/371,449.88
  6. Step 6: Final answer
    x = 177,985.01

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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.