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Finding the Fourth Proportional to 483,138.90, 724,708.35 and 167,627.70

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Solution

The fourth proportional to 483,138.90, 724,708.35 and 167,627.70 is: 251,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,138.90 : 724,708.35 = 167,627.70 : x
  2. Step 2: Convert to fraction form
    483,138.90/724,708.35 = 167,627.70/x
  3. Step 3: Cross multiply
    483,138.90x = 724,708.35 × 167,627.70
  4. Step 4: Simplify right side
    483,138.90x = 121,481,193,881.30
  5. Step 5: Solve for x
    x = 121,481,193,881.30/483,138.90
  6. Step 6: Final answer
    x = 251,441.55

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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.