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Finding the Fourth Proportional to 149,695.44, 206,228.80 and 104,291.29

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Solution

The fourth proportional to 149,695.44, 206,228.80 and 104,291.29 is: 143,677.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,695.44 : 206,228.80 = 104,291.29 : x
  2. Step 2: Convert to fraction form
    149,695.44/206,228.80 = 104,291.29/x
  3. Step 3: Cross multiply
    149,695.44x = 206,228.80 × 104,291.29
  4. Step 4: Simplify right side
    149,695.44x = 21,507,867,065.70
  5. Step 5: Solve for x
    x = 21,507,867,065.70/149,695.44
  6. Step 6: Final answer
    x = 143,677.51

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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.