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Finding the Fourth Proportional to 159,216.66, 238,628.16 and 80,353.44

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Solution

The fourth proportional to 159,216.66, 238,628.16 and 80,353.44 is: 120,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,216.66 : 238,628.16 = 80,353.44 : x
  2. Step 2: Convert to fraction form
    159,216.66/238,628.16 = 80,353.44/x
  3. Step 3: Cross multiply
    159,216.66x = 238,628.16 × 80,353.44
  4. Step 4: Simplify right side
    159,216.66x = 19,174,593,536.87
  5. Step 5: Solve for x
    x = 19,174,593,536.87/159,216.66
  6. Step 6: Final answer
    x = 120,430.82

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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.