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Finding the Fourth Proportional to 136,647.56, 204,955.90 and 36,815.08

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Solution

The fourth proportional to 136,647.56, 204,955.90 and 36,815.08 is: 55,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,647.56 : 204,955.90 = 36,815.08 : x
  2. Step 2: Convert to fraction form
    136,647.56/204,955.90 = 36,815.08/x
  3. Step 3: Cross multiply
    136,647.56x = 204,955.90 × 36,815.08
  4. Step 4: Simplify right side
    136,647.56x = 7,545,467,854.97
  5. Step 5: Solve for x
    x = 7,545,467,854.97/136,647.56
  6. Step 6: Final answer
    x = 55,218.46

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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.