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Finding the Fourth Proportional to 245,208.26, 367,871.67 and 85,261.11

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Solution

The fourth proportional to 245,208.26, 367,871.67 and 85,261.11 is: 127,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,208.26 : 367,871.67 = 85,261.11 : x
  2. Step 2: Convert to fraction form
    245,208.26/367,871.67 = 85,261.11/x
  3. Step 3: Cross multiply
    245,208.26x = 367,871.67 × 85,261.11
  4. Step 4: Simplify right side
    245,208.26x = 31,365,146,921.75
  5. Step 5: Solve for x
    x = 31,365,146,921.75/245,208.26
  6. Step 6: Final answer
    x = 127,912.28

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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.