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Finding the Fourth Proportional to 271,502.20, 407,253.30 and 171,337.60

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Solution

The fourth proportional to 271,502.20, 407,253.30 and 171,337.60 is: 257,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,502.20 : 407,253.30 = 171,337.60 : x
  2. Step 2: Convert to fraction form
    271,502.20/407,253.30 = 171,337.60/x
  3. Step 3: Cross multiply
    271,502.20x = 407,253.30 × 171,337.60
  4. Step 4: Simplify right side
    271,502.20x = 69,777,803,014.08
  5. Step 5: Solve for x
    x = 69,777,803,014.08/271,502.20
  6. Step 6: Final answer
    x = 257,006.40

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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.