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Finding the Fourth Proportional to 111,144.66, 166,724.41 and 39,088.93

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Solution

The fourth proportional to 111,144.66, 166,724.41 and 39,088.93 is: 58,636.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,144.66 : 166,724.41 = 39,088.93 : x
  2. Step 2: Convert to fraction form
    111,144.66/166,724.41 = 39,088.93/x
  3. Step 3: Cross multiply
    111,144.66x = 166,724.41 × 39,088.93
  4. Step 4: Simplify right side
    111,144.66x = 6,517,078,791.78
  5. Step 5: Solve for x
    x = 6,517,078,791.78/111,144.66
  6. Step 6: Final answer
    x = 58,636.00

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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.