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Finding the Fourth Proportional to 169,676.18, 254,126.68 and 80,992.12

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Solution

The fourth proportional to 169,676.18, 254,126.68 and 80,992.12 is: 121,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,676.18 : 254,126.68 = 80,992.12 : x
  2. Step 2: Convert to fraction form
    169,676.18/254,126.68 = 80,992.12/x
  3. Step 3: Cross multiply
    169,676.18x = 254,126.68 × 80,992.12
  4. Step 4: Simplify right side
    169,676.18x = 20,582,258,561.76
  5. Step 5: Solve for x
    x = 20,582,258,561.76/169,676.18
  6. Step 6: Final answer
    x = 121,303.17

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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.