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Finding the Fourth Proportional to 286,566.92, 395,471.94 and 159,247.88

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Solution

The fourth proportional to 286,566.92, 395,471.94 and 159,247.88 is: 219,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,566.92 : 395,471.94 = 159,247.88 : x
  2. Step 2: Convert to fraction form
    286,566.92/395,471.94 = 159,247.88/x
  3. Step 3: Cross multiply
    286,566.92x = 395,471.94 × 159,247.88
  4. Step 4: Simplify right side
    286,566.92x = 62,978,068,044.49
  5. Step 5: Solve for x
    x = 62,978,068,044.49/286,566.92
  6. Step 6: Final answer
    x = 219,767.40

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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.