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Finding the Fourth Proportional to 349,435.31, 482,068.95 and 222,042.56

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Solution

The fourth proportional to 349,435.31, 482,068.95 and 222,042.56 is: 306,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,435.31 : 482,068.95 = 222,042.56 : x
  2. Step 2: Convert to fraction form
    349,435.31/482,068.95 = 222,042.56/x
  3. Step 3: Cross multiply
    349,435.31x = 482,068.95 × 222,042.56
  4. Step 4: Simplify right side
    349,435.31x = 107,039,823,754.51
  5. Step 5: Solve for x
    x = 107,039,823,754.51/349,435.31
  6. Step 6: Final answer
    x = 306,322.29

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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.