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Finding the Fourth Proportional to 207,426.22, 311,035.04 and 120,899.94

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Solution

The fourth proportional to 207,426.22, 311,035.04 and 120,899.94 is: 181,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,426.22 : 311,035.04 = 120,899.94 : x
  2. Step 2: Convert to fraction form
    207,426.22/311,035.04 = 120,899.94/x
  3. Step 3: Cross multiply
    207,426.22x = 311,035.04 × 120,899.94
  4. Step 4: Simplify right side
    207,426.22x = 37,604,118,105.96
  5. Step 5: Solve for x
    x = 37,604,118,105.96/207,426.22
  6. Step 6: Final answer
    x = 181,289.13

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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.