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Finding the Fourth Proportional to 116,605.12, 160,923.20 and 65,622.73

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Solution

The fourth proportional to 116,605.12, 160,923.20 and 65,622.73 is: 90,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,605.12 : 160,923.20 = 65,622.73 : x
  2. Step 2: Convert to fraction form
    116,605.12/160,923.20 = 65,622.73/x
  3. Step 3: Cross multiply
    116,605.12x = 160,923.20 × 65,622.73
  4. Step 4: Simplify right side
    116,605.12x = 10,560,219,704.34
  5. Step 5: Solve for x
    x = 10,560,219,704.34/116,605.12
  6. Step 6: Final answer
    x = 90,563.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.