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Finding the Fourth Proportional to 111,858.86, 167,814.55 and 36,979.00

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Solution

The fourth proportional to 111,858.86, 167,814.55 and 36,979.00 is: 55,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,858.86 : 167,814.55 = 36,979.00 : x
  2. Step 2: Convert to fraction form
    111,858.86/167,814.55 = 36,979.00/x
  3. Step 3: Cross multiply
    111,858.86x = 167,814.55 × 36,979.00
  4. Step 4: Simplify right side
    111,858.86x = 6,205,613,871.14
  5. Step 5: Solve for x
    x = 6,205,613,871.14/111,858.86
  6. Step 6: Final answer
    x = 55,477.18

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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.