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Finding the Fourth Proportional to 125,846.65, 188,638.75 and 51,018.44

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Solution

The fourth proportional to 125,846.65, 188,638.75 and 51,018.44 is: 76,474.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,846.65 : 188,638.75 = 51,018.44 : x
  2. Step 2: Convert to fraction form
    125,846.65/188,638.75 = 51,018.44/x
  3. Step 3: Cross multiply
    125,846.65x = 188,638.75 × 51,018.44
  4. Step 4: Simplify right side
    125,846.65x = 9,624,054,493.46
  5. Step 5: Solve for x
    x = 9,624,054,493.46/125,846.65
  6. Step 6: Final answer
    x = 76,474.46

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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.