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Finding the Fourth Proportional to 319,327.95, 440,669.34 and 174,133.37

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Solution

The fourth proportional to 319,327.95, 440,669.34 and 174,133.37 is: 240,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,327.95 : 440,669.34 = 174,133.37 : x
  2. Step 2: Convert to fraction form
    319,327.95/440,669.34 = 174,133.37/x
  3. Step 3: Cross multiply
    319,327.95x = 440,669.34 × 174,133.37
  4. Step 4: Simplify right side
    319,327.95x = 76,735,237,229.88
  5. Step 5: Solve for x
    x = 76,735,237,229.88/319,327.95
  6. Step 6: Final answer
    x = 240,302.29

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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.