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Finding the Fourth Proportional to 136,639.51, 204,936.02 and 36,777.44

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Solution

The fourth proportional to 136,639.51, 204,936.02 and 36,777.44 is: 55,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,639.51 : 204,936.02 = 36,777.44 : x
  2. Step 2: Convert to fraction form
    136,639.51/204,936.02 = 36,777.44/x
  3. Step 3: Cross multiply
    136,639.51x = 204,936.02 × 36,777.44
  4. Step 4: Simplify right side
    136,639.51x = 7,537,022,852.63
  5. Step 5: Solve for x
    x = 7,537,022,852.63/136,639.51
  6. Step 6: Final answer
    x = 55,159.91

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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.