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Finding the Fourth Proportional to 99,608.58, 149,361.03 and 47,003.94

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Solution

The fourth proportional to 99,608.58, 149,361.03 and 47,003.94 is: 70,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608.58 : 149,361.03 = 47,003.94 : x
  2. Step 2: Convert to fraction form
    99,608.58/149,361.03 = 47,003.94/x
  3. Step 3: Cross multiply
    99,608.58x = 149,361.03 × 47,003.94
  4. Step 4: Simplify right side
    99,608.58x = 7,020,556,892.46
  5. Step 5: Solve for x
    x = 7,020,556,892.46/99,608.58
  6. Step 6: Final answer
    x = 70,481.45

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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.