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Finding the Fourth Proportional to 348,881.78, 481,508.93 and 212,994.50

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Solution

The fourth proportional to 348,881.78, 481,508.93 and 212,994.50 is: 293,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,881.78 : 481,508.93 = 212,994.50 : x
  2. Step 2: Convert to fraction form
    348,881.78/481,508.93 = 212,994.50/x
  3. Step 3: Cross multiply
    348,881.78x = 481,508.93 × 212,994.50
  4. Step 4: Simplify right side
    348,881.78x = 102,558,755,527.14
  5. Step 5: Solve for x
    x = 102,558,755,527.14/348,881.78
  6. Step 6: Final answer
    x = 293,964.20

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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.