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Finding the Fourth Proportional to 203,538.34, 280,846.60 and 122,911.89

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Solution

The fourth proportional to 203,538.34, 280,846.60 and 122,911.89 is: 169,596.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,538.34 : 280,846.60 = 122,911.89 : x
  2. Step 2: Convert to fraction form
    203,538.34/280,846.60 = 122,911.89/x
  3. Step 3: Cross multiply
    203,538.34x = 280,846.60 × 122,911.89
  4. Step 4: Simplify right side
    203,538.34x = 34,519,386,406.07
  5. Step 5: Solve for x
    x = 34,519,386,406.07/203,538.34
  6. Step 6: Final answer
    x = 169,596.48

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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.