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Finding the Fourth Proportional to 136,843.56, 205,108.74 and 61,850.52

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Solution

The fourth proportional to 136,843.56, 205,108.74 and 61,850.52 is: 92,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,843.56 : 205,108.74 = 61,850.52 : x
  2. Step 2: Convert to fraction form
    136,843.56/205,108.74 = 61,850.52/x
  3. Step 3: Cross multiply
    136,843.56x = 205,108.74 × 61,850.52
  4. Step 4: Simplify right side
    136,843.56x = 12,686,082,225.54
  5. Step 5: Solve for x
    x = 12,686,082,225.54/136,843.56
  6. Step 6: Final answer
    x = 92,705.00

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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.