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Finding the Fourth Proportional to 371,450.39, 557,148.32 and 118,662.98

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Solution

The fourth proportional to 371,450.39, 557,148.32 and 118,662.98 is: 177,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,450.39 : 557,148.32 = 118,662.98 : x
  2. Step 2: Convert to fraction form
    371,450.39/557,148.32 = 118,662.98/x
  3. Step 3: Cross multiply
    371,450.39x = 557,148.32 × 118,662.98
  4. Step 4: Simplify right side
    371,450.39x = 66,112,879,359.88
  5. Step 5: Solve for x
    x = 66,112,879,359.88/371,450.39
  6. Step 6: Final answer
    x = 177,985.76

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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.