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Finding the Fourth Proportional to 66,751.30, 100,016.38 and 46,933.03

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Solution

The fourth proportional to 66,751.30, 100,016.38 and 46,933.03 is: 70,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.30 : 100,016.38 = 46,933.03 : x
  2. Step 2: Convert to fraction form
    66,751.30/100,016.38 = 46,933.03/x
  3. Step 3: Cross multiply
    66,751.30x = 100,016.38 × 46,933.03
  4. Step 4: Simplify right side
    66,751.30x = 4,694,071,395.66
  5. Step 5: Solve for x
    x = 4,694,071,395.66/66,751.30
  6. Step 6: Final answer
    x = 70,321.80

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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.