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Finding the Fourth Proportional to 189,198.01, 283,217.45 and 122,505.45

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Solution

The fourth proportional to 189,198.01, 283,217.45 and 122,505.45 is: 183,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,198.01 : 283,217.45 = 122,505.45 : x
  2. Step 2: Convert to fraction form
    189,198.01/283,217.45 = 122,505.45/x
  3. Step 3: Cross multiply
    189,198.01x = 283,217.45 × 122,505.45
  4. Step 4: Simplify right side
    189,198.01x = 34,695,679,485.51
  5. Step 5: Solve for x
    x = 34,695,679,485.51/189,198.01
  6. Step 6: Final answer
    x = 183,382.90

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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.