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Finding the Fourth Proportional to 334,087.70, 501,131.55 and 156,940.70

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Solution

The fourth proportional to 334,087.70, 501,131.55 and 156,940.70 is: 235,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,087.70 : 501,131.55 = 156,940.70 : x
  2. Step 2: Convert to fraction form
    334,087.70/501,131.55 = 156,940.70/x
  3. Step 3: Cross multiply
    334,087.70x = 501,131.55 × 156,940.70
  4. Step 4: Simplify right side
    334,087.70x = 78,647,936,249.09
  5. Step 5: Solve for x
    x = 78,647,936,249.09/334,087.70
  6. Step 6: Final answer
    x = 235,411.05

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1.5x scale

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.