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Finding the Fourth Proportional to 120,782.40, 181,173.44 and 41,896.64

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Solution

The fourth proportional to 120,782.40, 181,173.44 and 41,896.64 is: 62,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,782.40 : 181,173.44 = 41,896.64 : x
  2. Step 2: Convert to fraction form
    120,782.40/181,173.44 = 41,896.64/x
  3. Step 3: Cross multiply
    120,782.40x = 181,173.44 × 41,896.64
  4. Step 4: Simplify right side
    120,782.40x = 7,590,558,393.24
  5. Step 5: Solve for x
    x = 7,590,558,393.24/120,782.40
  6. Step 6: Final answer
    x = 62,844.90

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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.