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Finding the Fourth Proportional to 250,866.69, 346,219.82 and 143,415.73

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Solution

The fourth proportional to 250,866.69, 346,219.82 and 143,415.73 is: 197,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,866.69 : 346,219.82 = 143,415.73 : x
  2. Step 2: Convert to fraction form
    250,866.69/346,219.82 = 143,415.73/x
  3. Step 3: Cross multiply
    250,866.69x = 346,219.82 × 143,415.73
  4. Step 4: Simplify right side
    250,866.69x = 49,653,368,479.27
  5. Step 5: Solve for x
    x = 49,653,368,479.27/250,866.69
  6. Step 6: Final answer
    x = 197,927.31

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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.