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Finding the Fourth Proportional to 311,055.20, 466,237.20 and 170,914.40

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Solution

The fourth proportional to 311,055.20, 466,237.20 and 170,914.40 is: 256,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,055.20 : 466,237.20 = 170,914.40 : x
  2. Step 2: Convert to fraction form
    311,055.20/466,237.20 = 170,914.40/x
  3. Step 3: Cross multiply
    311,055.20x = 466,237.20 × 170,914.40
  4. Step 4: Simplify right side
    311,055.20x = 79,686,651,295.68
  5. Step 5: Solve for x
    x = 79,686,651,295.68/311,055.20
  6. Step 6: Final answer
    x = 256,181.70

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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.