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Finding the Fourth Proportional to 66,678.30, 100,033.74 and 46,995.30

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Solution

The fourth proportional to 66,678.30, 100,033.74 and 46,995.30 is: 70,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678.30 : 100,033.74 = 46,995.30 : x
  2. Step 2: Convert to fraction form
    66,678.30/100,033.74 = 46,995.30/x
  3. Step 3: Cross multiply
    66,678.30x = 100,033.74 × 46,995.30
  4. Step 4: Simplify right side
    66,678.30x = 4,701,115,621.42
  5. Step 5: Solve for x
    x = 4,701,115,621.42/66,678.30
  6. Step 6: Final answer
    x = 70,504.43

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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.