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Finding the Fourth Proportional to 123,908.49, 185,939.06 and 49,015.89

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Solution

The fourth proportional to 123,908.49, 185,939.06 and 49,015.89 is: 73,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,908.49 : 185,939.06 = 49,015.89 : x
  2. Step 2: Convert to fraction form
    123,908.49/185,939.06 = 49,015.89/x
  3. Step 3: Cross multiply
    123,908.49x = 185,939.06 × 49,015.89
  4. Step 4: Simplify right side
    123,908.49x = 9,113,968,266.58
  5. Step 5: Solve for x
    x = 9,113,968,266.58/123,908.49
  6. Step 6: Final answer
    x = 73,554.03

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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.