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Finding the Fourth Proportional to 269,647.82, 372,113.56 and 148,789.01

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Solution

The fourth proportional to 269,647.82, 372,113.56 and 148,789.01 is: 205,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,647.82 : 372,113.56 = 148,789.01 : x
  2. Step 2: Convert to fraction form
    269,647.82/372,113.56 = 148,789.01/x
  3. Step 3: Cross multiply
    269,647.82x = 372,113.56 × 148,789.01
  4. Step 4: Simplify right side
    269,647.82x = 55,366,408,758.29
  5. Step 5: Solve for x
    x = 55,366,408,758.29/269,647.82
  6. Step 6: Final answer
    x = 205,328.60

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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.