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Finding the Fourth Proportional to 111,999.93, 168,024.78 and 40,922.43

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Solution

The fourth proportional to 111,999.93, 168,024.78 and 40,922.43 is: 61,392.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,999.93 : 168,024.78 = 40,922.43 : x
  2. Step 2: Convert to fraction form
    111,999.93/168,024.78 = 40,922.43/x
  3. Step 3: Cross multiply
    111,999.93x = 168,024.78 × 40,922.43
  4. Step 4: Simplify right side
    111,999.93x = 6,875,982,297.82
  5. Step 5: Solve for x
    x = 6,875,982,297.82/111,999.93
  6. Step 6: Final answer
    x = 61,392.74

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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.