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Finding the Fourth Proportional to 243,760.05, 365,685.84 and 110,649.67

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Solution

The fourth proportional to 243,760.05, 365,685.84 and 110,649.67 is: 165,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,760.05 : 365,685.84 = 110,649.67 : x
  2. Step 2: Convert to fraction form
    243,760.05/365,685.84 = 110,649.67/x
  3. Step 3: Cross multiply
    243,760.05x = 365,685.84 × 110,649.67
  4. Step 4: Simplify right side
    243,760.05x = 40,463,017,519.67
  5. Step 5: Solve for x
    x = 40,463,017,519.67/243,760.05
  6. Step 6: Final answer
    x = 165,995.28

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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.