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Finding the Fourth Proportional to 307,918.20, 462,030.90 and 174,900.60

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Solution

The fourth proportional to 307,918.20, 462,030.90 and 174,900.60 is: 262,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,918.20 : 462,030.90 = 174,900.60 : x
  2. Step 2: Convert to fraction form
    307,918.20/462,030.90 = 174,900.60/x
  3. Step 3: Cross multiply
    307,918.20x = 462,030.90 × 174,900.60
  4. Step 4: Simplify right side
    307,918.20x = 80,809,481,628.54
  5. Step 5: Solve for x
    x = 80,809,481,628.54/307,918.20
  6. Step 6: Final answer
    x = 262,438.15

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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.