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Finding the Fourth Proportional to 389,010.38, 583,745.27 and 164,356.34

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Solution

The fourth proportional to 389,010.38, 583,745.27 and 164,356.34 is: 246,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,010.38 : 583,745.27 = 164,356.34 : x
  2. Step 2: Convert to fraction form
    389,010.38/583,745.27 = 164,356.34/x
  3. Step 3: Cross multiply
    389,010.38x = 583,745.27 × 164,356.34
  4. Step 4: Simplify right side
    389,010.38x = 95,942,232,329.00
  5. Step 5: Solve for x
    x = 95,942,232,329.00/389,010.38
  6. Step 6: Final answer
    x = 246,631.55

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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.