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Finding the Fourth Proportional to 203,175.46, 304,811.85 and 84,780.94

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Solution

The fourth proportional to 203,175.46, 304,811.85 and 84,780.94 is: 127,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,175.46 : 304,811.85 = 84,780.94 : x
  2. Step 2: Convert to fraction form
    203,175.46/304,811.85 = 84,780.94/x
  3. Step 3: Cross multiply
    203,175.46x = 304,811.85 × 84,780.94
  4. Step 4: Simplify right side
    203,175.46x = 25,842,235,166.14
  5. Step 5: Solve for x
    x = 25,842,235,166.14/203,175.46
  6. Step 6: Final answer
    x = 127,191.71

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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.