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Finding the Fourth Proportional to 109,695.38, 151,379.62 and 59,394.38

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Solution

The fourth proportional to 109,695.38, 151,379.62 and 59,394.38 is: 81,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,695.38 : 151,379.62 = 59,394.38 : x
  2. Step 2: Convert to fraction form
    109,695.38/151,379.62 = 59,394.38/x
  3. Step 3: Cross multiply
    109,695.38x = 151,379.62 × 59,394.38
  4. Step 4: Simplify right side
    109,695.38x = 8,991,097,769.15
  5. Step 5: Solve for x
    x = 8,991,097,769.15/109,695.38
  6. Step 6: Final answer
    x = 81,964.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.