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Finding the Fourth Proportional to 111,607.87, 167,410.89 and 45,046.98

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Solution

The fourth proportional to 111,607.87, 167,410.89 and 45,046.98 is: 67,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,607.87 : 167,410.89 = 45,046.98 : x
  2. Step 2: Convert to fraction form
    111,607.87/167,410.89 = 45,046.98/x
  3. Step 3: Cross multiply
    111,607.87x = 167,410.89 × 45,046.98
  4. Step 4: Simplify right side
    111,607.87x = 7,541,354,176.56
  5. Step 5: Solve for x
    x = 7,541,354,176.56/111,607.87
  6. Step 6: Final answer
    x = 67,570.10

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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.