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Finding the Fourth Proportional to 111,002.80, 166,504.20 and 64,346.80

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Solution

The fourth proportional to 111,002.80, 166,504.20 and 64,346.80 is: 96,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,002.80 : 166,504.20 = 64,346.80 : x
  2. Step 2: Convert to fraction form
    111,002.80/166,504.20 = 64,346.80/x
  3. Step 3: Cross multiply
    111,002.80x = 166,504.20 × 64,346.80
  4. Step 4: Simplify right side
    111,002.80x = 10,714,012,456.56
  5. Step 5: Solve for x
    x = 10,714,012,456.56/111,002.80
  6. Step 6: Final answer
    x = 96,520.20

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1.5x scale

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.