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Finding the Fourth Proportional to 111,875.51, 167,773.31 and 36,981.83

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Solution

The fourth proportional to 111,875.51, 167,773.31 and 36,981.83 is: 55,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,875.51 : 167,773.31 = 36,981.83 : x
  2. Step 2: Convert to fraction form
    111,875.51/167,773.31 = 36,981.83/x
  3. Step 3: Cross multiply
    111,875.51x = 167,773.31 × 36,981.83
  4. Step 4: Simplify right side
    111,875.51x = 6,204,563,844.05
  5. Step 5: Solve for x
    x = 6,204,563,844.05/111,875.51
  6. Step 6: Final answer
    x = 55,459.54

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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.