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Finding the Fourth Proportional to 311,787.64, 467,419.02 and 124,697.08

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Solution

The fourth proportional to 311,787.64, 467,419.02 and 124,697.08 is: 186,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,787.64 : 467,419.02 = 124,697.08 : x
  2. Step 2: Convert to fraction form
    311,787.64/467,419.02 = 124,697.08/x
  3. Step 3: Cross multiply
    311,787.64x = 467,419.02 × 124,697.08
  4. Step 4: Simplify right side
    311,787.64x = 58,285,786,930.46
  5. Step 5: Solve for x
    x = 58,285,786,930.46/311,787.64
  6. Step 6: Final answer
    x = 186,940.66

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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.