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Finding the Fourth Proportional to 237,407.78, 356,165.02 and 79,632.20

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Solution

The fourth proportional to 237,407.78, 356,165.02 and 79,632.20 is: 119,466.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,407.78 : 356,165.02 = 79,632.20 : x
  2. Step 2: Convert to fraction form
    237,407.78/356,165.02 = 79,632.20/x
  3. Step 3: Cross multiply
    237,407.78x = 356,165.02 × 79,632.20
  4. Step 4: Simplify right side
    237,407.78x = 28,362,204,105.64
  5. Step 5: Solve for x
    x = 28,362,204,105.64/237,407.78
  6. Step 6: Final answer
    x = 119,466.19

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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.