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Finding the Fourth Proportional to 66,751.55, 100,016.75 and 46,933.28

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Solution

The fourth proportional to 66,751.55, 100,016.75 and 46,933.28 is: 70,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.55 : 100,016.75 = 46,933.28 : x
  2. Step 2: Convert to fraction form
    66,751.55/100,016.75 = 46,933.28/x
  3. Step 3: Cross multiply
    66,751.55x = 100,016.75 × 46,933.28
  4. Step 4: Simplify right side
    66,751.55x = 4,694,114,132.44
  5. Step 5: Solve for x
    x = 4,694,114,132.44/66,751.55
  6. Step 6: Final answer
    x = 70,322.17

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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.