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Finding the Fourth Proportional to 271,307.80, 406,961.70 and 176,829.40

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Solution

The fourth proportional to 271,307.80, 406,961.70 and 176,829.40 is: 265,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,307.80 : 406,961.70 = 176,829.40 : x
  2. Step 2: Convert to fraction form
    271,307.80/406,961.70 = 176,829.40/x
  3. Step 3: Cross multiply
    271,307.80x = 406,961.70 × 176,829.40
  4. Step 4: Simplify right side
    271,307.80x = 71,962,793,233.98
  5. Step 5: Solve for x
    x = 71,962,793,233.98/271,307.80
  6. Step 6: Final answer
    x = 265,244.10

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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.