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Finding the Fourth Proportional to 163,796.37, 245,667.21 and 45,479.67

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Solution

The fourth proportional to 163,796.37, 245,667.21 and 45,479.67 is: 68,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,796.37 : 245,667.21 = 45,479.67 : x
  2. Step 2: Convert to fraction form
    163,796.37/245,667.21 = 45,479.67/x
  3. Step 3: Cross multiply
    163,796.37x = 245,667.21 × 45,479.67
  4. Step 4: Simplify right side
    163,796.37x = 11,172,863,640.62
  5. Step 5: Solve for x
    x = 11,172,863,640.62/163,796.37
  6. Step 6: Final answer
    x = 68,211.91

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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.