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Finding the Fourth Proportional to 266,647.72, 367,969.92 and 159,197.56

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Solution

The fourth proportional to 266,647.72, 367,969.92 and 159,197.56 is: 219,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,647.72 : 367,969.92 = 159,197.56 : x
  2. Step 2: Convert to fraction form
    266,647.72/367,969.92 = 159,197.56/x
  3. Step 3: Cross multiply
    266,647.72x = 367,969.92 × 159,197.56
  4. Step 4: Simplify right side
    266,647.72x = 58,579,913,417.40
  5. Step 5: Solve for x
    x = 58,579,913,417.40/266,647.72
  6. Step 6: Final answer
    x = 219,690.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.