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Finding the Fourth Proportional to 99,893.90, 149,840.44 and 47,340.29

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Solution

The fourth proportional to 99,893.90, 149,840.44 and 47,340.29 is: 71,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,893.90 : 149,840.44 = 47,340.29 : x
  2. Step 2: Convert to fraction form
    99,893.90/149,840.44 = 47,340.29/x
  3. Step 3: Cross multiply
    99,893.90x = 149,840.44 × 47,340.29
  4. Step 4: Simplify right side
    99,893.90x = 7,093,489,883.33
  5. Step 5: Solve for x
    x = 7,093,489,883.33/99,893.90
  6. Step 6: Final answer
    x = 71,010.24

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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.