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Finding the Fourth Proportional to 311,218.02, 466,870.23 and 100,787.94

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Solution

The fourth proportional to 311,218.02, 466,870.23 and 100,787.94 is: 151,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,218.02 : 466,870.23 = 100,787.94 : x
  2. Step 2: Convert to fraction form
    311,218.02/466,870.23 = 100,787.94/x
  3. Step 3: Cross multiply
    311,218.02x = 466,870.23 × 100,787.94
  4. Step 4: Simplify right side
    311,218.02x = 47,054,888,729.03
  5. Step 5: Solve for x
    x = 47,054,888,729.03/311,218.02
  6. Step 6: Final answer
    x = 151,195.90

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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.