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Finding the Fourth Proportional to 215,873.82, 297,907.81 and 119,081.38

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Solution

The fourth proportional to 215,873.82, 297,907.81 and 119,081.38 is: 164,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,873.82 : 297,907.81 = 119,081.38 : x
  2. Step 2: Convert to fraction form
    215,873.82/297,907.81 = 119,081.38/x
  3. Step 3: Cross multiply
    215,873.82x = 297,907.81 × 119,081.38
  4. Step 4: Simplify right side
    215,873.82x = 35,475,273,127.58
  5. Step 5: Solve for x
    x = 35,475,273,127.58/215,873.82
  6. Step 6: Final answer
    x = 164,333.37

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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.