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Finding the Fourth Proportional to 271,421.40, 406,937.70 and 113,568.60

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Solution

The fourth proportional to 271,421.40, 406,937.70 and 113,568.60 is: 170,271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,421.40 : 406,937.70 = 113,568.60 : x
  2. Step 2: Convert to fraction form
    271,421.40/406,937.70 = 113,568.60/x
  3. Step 3: Cross multiply
    271,421.40x = 406,937.70 × 113,568.60
  4. Step 4: Simplify right side
    271,421.40x = 46,215,344,876.22
  5. Step 5: Solve for x
    x = 46,215,344,876.22/271,421.40
  6. Step 6: Final answer
    x = 170,271.56

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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.