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Finding the Fourth Proportional to 111,745.98, 167,640.84 and 64,987.92

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Solution

The fourth proportional to 111,745.98, 167,640.84 and 64,987.92 is: 97,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,745.98 : 167,640.84 = 64,987.92 : x
  2. Step 2: Convert to fraction form
    111,745.98/167,640.84 = 64,987.92/x
  3. Step 3: Cross multiply
    111,745.98x = 167,640.84 × 64,987.92
  4. Step 4: Simplify right side
    111,745.98x = 10,894,629,498.65
  5. Step 5: Solve for x
    x = 10,894,629,498.65/111,745.98
  6. Step 6: Final answer
    x = 97,494.60

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1.5x scale

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.