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Finding the Fourth Proportional to 159,916, 220,703.52 and 92,848

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Solution

The fourth proportional to 159,916, 220,703.52 and 92,848 is: 128,141.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,916 : 220,703.52 = 92,848 : x
  2. Step 2: Convert to fraction form
    159,916/220,703.52 = 92,848/x
  3. Step 3: Cross multiply
    159,916x = 220,703.52 × 92,848
  4. Step 4: Simplify right side
    159,916x = 20,491,880,424.96
  5. Step 5: Solve for x
    x = 20,491,880,424.96/159,916
  6. Step 6: Final answer
    x = 128,141.53

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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.