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Finding the Fourth Proportional to 173,081.20, 259,621.80 and 106,596.40

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Solution

The fourth proportional to 173,081.20, 259,621.80 and 106,596.40 is: 159,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,081.20 : 259,621.80 = 106,596.40 : x
  2. Step 2: Convert to fraction form
    173,081.20/259,621.80 = 106,596.40/x
  3. Step 3: Cross multiply
    173,081.20x = 259,621.80 × 106,596.40
  4. Step 4: Simplify right side
    173,081.20x = 27,674,749,241.52
  5. Step 5: Solve for x
    x = 27,674,749,241.52/173,081.20
  6. Step 6: Final answer
    x = 159,894.60

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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.