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Finding the Fourth Proportional to 111,808.08, 167,741.28 and 41,688

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Solution

The fourth proportional to 111,808.08, 167,741.28 and 41,688 is: 62,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,808.08 : 167,741.28 = 41,688 : x
  2. Step 2: Convert to fraction form
    111,808.08/167,741.28 = 41,688/x
  3. Step 3: Cross multiply
    111,808.08x = 167,741.28 × 41,688
  4. Step 4: Simplify right side
    111,808.08x = 6,992,798,480.64
  5. Step 5: Solve for x
    x = 6,992,798,480.64/111,808.08
  6. Step 6: Final answer
    x = 62,542.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.