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Finding the Fourth Proportional to 389,018.48, 583,387.31 and 164,396.27

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Solution

The fourth proportional to 389,018.48, 583,387.31 and 164,396.27 is: 246,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,018.48 : 583,387.31 = 164,396.27 : x
  2. Step 2: Convert to fraction form
    389,018.48/583,387.31 = 164,396.27/x
  3. Step 3: Cross multiply
    389,018.48x = 583,387.31 × 164,396.27
  4. Step 4: Simplify right side
    389,018.48x = 95,906,696,317.24
  5. Step 5: Solve for x
    x = 95,906,696,317.24/389,018.48
  6. Step 6: Final answer
    x = 246,535.06

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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.