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Finding the Fourth Proportional to 271,297.80, 406,946.70 and 176,819.40

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Solution

The fourth proportional to 271,297.80, 406,946.70 and 176,819.40 is: 265,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,297.80 : 406,946.70 = 176,819.40 : x
  2. Step 2: Convert to fraction form
    271,297.80/406,946.70 = 176,819.40/x
  3. Step 3: Cross multiply
    271,297.80x = 406,946.70 × 176,819.40
  4. Step 4: Simplify right side
    271,297.80x = 71,956,071,325.98
  5. Step 5: Solve for x
    x = 71,956,071,325.98/271,297.80
  6. Step 6: Final answer
    x = 265,229.10

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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.