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Finding the Fourth Proportional to 159,385.91, 219,953.21 and 95,724.77

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Solution

The fourth proportional to 159,385.91, 219,953.21 and 95,724.77 is: 132,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,385.91 : 219,953.21 = 95,724.77 : x
  2. Step 2: Convert to fraction form
    159,385.91/219,953.21 = 95,724.77/x
  3. Step 3: Cross multiply
    159,385.91x = 219,953.21 × 95,724.77
  4. Step 4: Simplify right side
    159,385.91x = 21,054,968,859.62
  5. Step 5: Solve for x
    x = 21,054,968,859.62/159,385.91
  6. Step 6: Final answer
    x = 132,100.57

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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.