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Finding the Fourth Proportional to 322,075.90, 483,197.37 and 122,399.74

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Solution

The fourth proportional to 322,075.90, 483,197.37 and 122,399.74 is: 183,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,075.90 : 483,197.37 = 122,399.74 : x
  2. Step 2: Convert to fraction form
    322,075.90/483,197.37 = 122,399.74/x
  3. Step 3: Cross multiply
    322,075.90x = 483,197.37 × 122,399.74
  4. Step 4: Simplify right side
    322,075.90x = 59,143,232,456.68
  5. Step 5: Solve for x
    x = 59,143,232,456.68/322,075.90
  6. Step 6: Final answer
    x = 183,631.35

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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.