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Finding the Fourth Proportional to 250,978.74, 346,349.66 and 143,548.62

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Solution

The fourth proportional to 250,978.74, 346,349.66 and 143,548.62 is: 198,096.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,978.74 : 346,349.66 = 143,548.62 : x
  2. Step 2: Convert to fraction form
    250,978.74/346,349.66 = 143,548.62/x
  3. Step 3: Cross multiply
    250,978.74x = 346,349.66 × 143,548.62
  4. Step 4: Simplify right side
    250,978.74x = 49,718,015,012.73
  5. Step 5: Solve for x
    x = 49,718,015,012.73/250,978.74
  6. Step 6: Final answer
    x = 198,096.52

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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.