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Finding the Fourth Proportional to 250,972.84, 346,342.78 and 149,018.66

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Solution

The fourth proportional to 250,972.84, 346,342.78 and 149,018.66 is: 205,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,972.84 : 346,342.78 = 149,018.66 : x
  2. Step 2: Convert to fraction form
    250,972.84/346,342.78 = 149,018.66/x
  3. Step 3: Cross multiply
    250,972.84x = 346,342.78 × 149,018.66
  4. Step 4: Simplify right side
    250,972.84x = 51,611,535,244.56
  5. Step 5: Solve for x
    x = 51,611,535,244.56/250,972.84
  6. Step 6: Final answer
    x = 205,645.90

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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.