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Finding the Fourth Proportional to 312,232.68, 430,932.06 and 191,440.44

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Solution

The fourth proportional to 312,232.68, 430,932.06 and 191,440.44 is: 264,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,232.68 : 430,932.06 = 191,440.44 : x
  2. Step 2: Convert to fraction form
    312,232.68/430,932.06 = 191,440.44/x
  3. Step 3: Cross multiply
    312,232.68x = 430,932.06 × 191,440.44
  4. Step 4: Simplify right side
    312,232.68x = 82,497,823,176.51
  5. Step 5: Solve for x
    x = 82,497,823,176.51/312,232.68
  6. Step 6: Final answer
    x = 264,219.05

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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.