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Finding the Fourth Proportional to 201,208.21, 301,624.71 and 67,995.31

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Solution

The fourth proportional to 201,208.21, 301,624.71 and 67,995.31 is: 101,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,208.21 : 301,624.71 = 67,995.31 : x
  2. Step 2: Convert to fraction form
    201,208.21/301,624.71 = 67,995.31/x
  3. Step 3: Cross multiply
    201,208.21x = 301,624.71 × 67,995.31
  4. Step 4: Simplify right side
    201,208.21x = 20,509,065,660.11
  5. Step 5: Solve for x
    x = 20,509,065,660.11/201,208.21
  6. Step 6: Final answer
    x = 101,929.57

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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.