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Finding the Fourth Proportional to 99,191.30, 148,788.16 and 29,072.03

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Solution

The fourth proportional to 99,191.30, 148,788.16 and 29,072.03 is: 43,608.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,191.30 : 148,788.16 = 29,072.03 : x
  2. Step 2: Convert to fraction form
    99,191.30/148,788.16 = 29,072.03/x
  3. Step 3: Cross multiply
    99,191.30x = 148,788.16 × 29,072.03
  4. Step 4: Simplify right side
    99,191.30x = 4,325,573,034.54
  5. Step 5: Solve for x
    x = 4,325,573,034.54/99,191.30
  6. Step 6: Final answer
    x = 43,608.39

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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.