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Finding the Fourth Proportional to 267,087.63, 400,684.91 and 98,608.98

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Solution

The fourth proportional to 267,087.63, 400,684.91 and 98,608.98 is: 147,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,087.63 : 400,684.91 = 98,608.98 : x
  2. Step 2: Convert to fraction form
    267,087.63/400,684.91 = 98,608.98/x
  3. Step 3: Cross multiply
    267,087.63x = 400,684.91 × 98,608.98
  4. Step 4: Simplify right side
    267,087.63x = 39,511,129,783.45
  5. Step 5: Solve for x
    x = 39,511,129,783.45/267,087.63
  6. Step 6: Final answer
    x = 147,933.21

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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.