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Finding the Fourth Proportional to 203,338.41, 280,609.08 and 112,696.37

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Solution

The fourth proportional to 203,338.41, 280,609.08 and 112,696.37 is: 155,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,338.41 : 280,609.08 = 112,696.37 : x
  2. Step 2: Convert to fraction form
    203,338.41/280,609.08 = 112,696.37/x
  3. Step 3: Cross multiply
    203,338.41x = 280,609.08 × 112,696.37
  4. Step 4: Simplify right side
    203,338.41x = 31,623,624,705.04
  5. Step 5: Solve for x
    x = 31,623,624,705.04/203,338.41
  6. Step 6: Final answer
    x = 155,522.14

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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.