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Finding the Fourth Proportional to 349,173.28, 481,845.54 and 213,434.50

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Solution

The fourth proportional to 349,173.28, 481,845.54 and 213,434.50 is: 294,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,173.28 : 481,845.54 = 213,434.50 : x
  2. Step 2: Convert to fraction form
    349,173.28/481,845.54 = 213,434.50/x
  3. Step 3: Cross multiply
    349,173.28x = 481,845.54 × 213,434.50
  4. Step 4: Simplify right side
    349,173.28x = 102,842,461,907.13
  5. Step 5: Solve for x
    x = 102,842,461,907.13/349,173.28
  6. Step 6: Final answer
    x = 294,531.31

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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.