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Finding the Fourth Proportional to 311,058.20, 466,241.70 and 170,917.40

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Solution

The fourth proportional to 311,058.20, 466,241.70 and 170,917.40 is: 256,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,058.20 : 466,241.70 = 170,917.40 : x
  2. Step 2: Convert to fraction form
    311,058.20/466,241.70 = 170,917.40/x
  3. Step 3: Cross multiply
    311,058.20x = 466,241.70 × 170,917.40
  4. Step 4: Simplify right side
    311,058.20x = 79,688,819,135.58
  5. Step 5: Solve for x
    x = 79,688,819,135.58/311,058.20
  6. Step 6: Final answer
    x = 256,186.20

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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.