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Finding the Fourth Proportional to 111,856.80, 167,544.48 and 52,603.68

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Solution

The fourth proportional to 111,856.80, 167,544.48 and 52,603.68 is: 78,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,856.80 : 167,544.48 = 52,603.68 : x
  2. Step 2: Convert to fraction form
    111,856.80/167,544.48 = 52,603.68/x
  3. Step 3: Cross multiply
    111,856.80x = 167,544.48 × 52,603.68
  4. Step 4: Simplify right side
    111,856.80x = 8,813,456,211.69
  5. Step 5: Solve for x
    x = 8,813,456,211.69/111,856.80
  6. Step 6: Final answer
    x = 78,792.31

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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.