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Finding the Fourth Proportional to 111,887.72, 167,779.74 and 41,716.52

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Solution

The fourth proportional to 111,887.72, 167,779.74 and 41,716.52 is: 62,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,887.72 : 167,779.74 = 41,716.52 : x
  2. Step 2: Convert to fraction form
    111,887.72/167,779.74 = 41,716.52/x
  3. Step 3: Cross multiply
    111,887.72x = 167,779.74 × 41,716.52
  4. Step 4: Simplify right side
    111,887.72x = 6,999,186,879.30
  5. Step 5: Solve for x
    x = 6,999,186,879.30/111,887.72
  6. Step 6: Final answer
    x = 62,555.45

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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.