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Finding the Fourth Proportional to 324,175.40, 485,643.45 and 174,365.90

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Solution

The fourth proportional to 324,175.40, 485,643.45 and 174,365.90 is: 261,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,175.40 : 485,643.45 = 174,365.90 : x
  2. Step 2: Convert to fraction form
    324,175.40/485,643.45 = 174,365.90/x
  3. Step 3: Cross multiply
    324,175.40x = 485,643.45 × 174,365.90
  4. Step 4: Simplify right side
    324,175.40x = 84,679,657,238.36
  5. Step 5: Solve for x
    x = 84,679,657,238.36/324,175.40
  6. Step 6: Final answer
    x = 261,215.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.