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Finding the Fourth Proportional to 483,877.40, 725,643.30 and 168,344.60

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Solution

The fourth proportional to 483,877.40, 725,643.30 and 168,344.60 is: 252,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,877.40 : 725,643.30 = 168,344.60 : x
  2. Step 2: Convert to fraction form
    483,877.40/725,643.30 = 168,344.60/x
  3. Step 3: Cross multiply
    483,877.40x = 725,643.30 × 168,344.60
  4. Step 4: Simplify right side
    483,877.40x = 122,158,131,081.18
  5. Step 5: Solve for x
    x = 122,158,131,081.18/483,877.40
  6. Step 6: Final answer
    x = 252,456.78

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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.