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Finding the Fourth Proportional to 203,338.52, 280,599.51 and 112,696.03

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Solution

The fourth proportional to 203,338.52, 280,599.51 and 112,696.03 is: 155,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,338.52 : 280,599.51 = 112,696.03 : x
  2. Step 2: Convert to fraction form
    203,338.52/280,599.51 = 112,696.03/x
  3. Step 3: Cross multiply
    203,338.52x = 280,599.51 × 112,696.03
  4. Step 4: Simplify right side
    203,338.52x = 31,622,450,095.45
  5. Step 5: Solve for x
    x = 31,622,450,095.45/203,338.52
  6. Step 6: Final answer
    x = 155,516.28

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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.