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Finding the Third Proportional to 179,645.63 and 391,184.72

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Solution

The third proportional to 179,645.63 and 391,184.72 is: 851,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,645.63 : 391,184.72 = 391,184.72 : x
  2. Step 2: Convert to fraction form
    179,645.63/391,184.72 = 391,184.72/x
  3. Step 3: Cross multiply
    179,645.63x = 391,184.72 × 391,184.72
  4. Step 4: Simplify right side
    179,645.63x = 153,025,484,183.52
  5. Step 5: Solve for x
    x = 153,025,484,183.52/179,645.63
  6. Step 6: Final answer
    x = 851,818.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.