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Finding the Fourth Proportional to 111,613, 167,277.12 and 52,318.03

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Solution

The fourth proportional to 111,613, 167,277.12 and 52,318.03 is: 78,410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,613 : 167,277.12 = 52,318.03 : x
  2. Step 2: Convert to fraction form
    111,613/167,277.12 = 52,318.03/x
  3. Step 3: Cross multiply
    111,613x = 167,277.12 × 52,318.03
  4. Step 4: Simplify right side
    111,613x = 8,751,609,382.47
  5. Step 5: Solve for x
    x = 8,751,609,382.47/111,613
  6. Step 6: Final answer
    x = 78,410.31

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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.