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Finding the Fourth Proportional to 591,381.48, 887,078.70 and 170,661

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Solution

The fourth proportional to 591,381.48, 887,078.70 and 170,661 is: 255,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,381.48 : 887,078.70 = 170,661 : x
  2. Step 2: Convert to fraction form
    591,381.48/887,078.70 = 170,661/x
  3. Step 3: Cross multiply
    591,381.48x = 887,078.70 × 170,661
  4. Step 4: Simplify right side
    591,381.48x = 151,389,738,020.70
  5. Step 5: Solve for x
    x = 151,389,738,020.70/591,381.48
  6. Step 6: Final answer
    x = 255,993.37

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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.