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Finding the Fourth Proportional to 348,659.46, 481,054.41 and 212,715.54

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Solution

The fourth proportional to 348,659.46, 481,054.41 and 212,715.54 is: 293,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,659.46 : 481,054.41 = 212,715.54 : x
  2. Step 2: Convert to fraction form
    348,659.46/481,054.41 = 212,715.54/x
  3. Step 3: Cross multiply
    348,659.46x = 481,054.41 × 212,715.54
  4. Step 4: Simplify right side
    348,659.46x = 102,327,748,592.53
  5. Step 5: Solve for x
    x = 102,327,748,592.53/348,659.46
  6. Step 6: Final answer
    x = 293,489.09

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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.