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Finding the Fourth Proportional to 99,190.98, 148,795.38 and 29,070.90

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Solution

The fourth proportional to 99,190.98, 148,795.38 and 29,070.90 is: 43,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.98 : 148,795.38 = 29,070.90 : x
  2. Step 2: Convert to fraction form
    99,190.98/148,795.38 = 29,070.90/x
  3. Step 3: Cross multiply
    99,190.98x = 148,795.38 × 29,070.90
  4. Step 4: Simplify right side
    99,190.98x = 4,325,615,612.44
  5. Step 5: Solve for x
    x = 4,325,615,612.44/99,190.98
  6. Step 6: Final answer
    x = 43,608.96

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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.