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Finding the Fourth Proportional to 136,693.37, 205,016.42 and 61,796.12

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Solution

The fourth proportional to 136,693.37, 205,016.42 and 61,796.12 is: 92,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,693.37 : 205,016.42 = 61,796.12 : x
  2. Step 2: Convert to fraction form
    136,693.37/205,016.42 = 61,796.12/x
  3. Step 3: Cross multiply
    136,693.37x = 205,016.42 × 61,796.12
  4. Step 4: Simplify right side
    136,693.37x = 12,669,218,421.70
  5. Step 5: Solve for x
    x = 12,669,218,421.70/136,693.37
  6. Step 6: Final answer
    x = 92,683.49

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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.