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Finding the Fourth Proportional to 111,011.80, 166,517.70 and 32,128.60

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Solution

The fourth proportional to 111,011.80, 166,517.70 and 32,128.60 is: 48,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,011.80 : 166,517.70 = 32,128.60 : x
  2. Step 2: Convert to fraction form
    111,011.80/166,517.70 = 32,128.60/x
  3. Step 3: Cross multiply
    111,011.80x = 166,517.70 × 32,128.60
  4. Step 4: Simplify right side
    111,011.80x = 5,349,980,576.22
  5. Step 5: Solve for x
    x = 5,349,980,576.22/111,011.80
  6. Step 6: Final answer
    x = 48,192.90

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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.