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Finding the Fourth Proportional to 274,290.70, 411,436.05 and 174,891.55

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Solution

The fourth proportional to 274,290.70, 411,436.05 and 174,891.55 is: 262,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,290.70 : 411,436.05 = 174,891.55 : x
  2. Step 2: Convert to fraction form
    274,290.70/411,436.05 = 174,891.55/x
  3. Step 3: Cross multiply
    274,290.70x = 411,436.05 × 174,891.55
  4. Step 4: Simplify right side
    274,290.70x = 71,956,688,510.38
  5. Step 5: Solve for x
    x = 71,956,688,510.38/274,290.70
  6. Step 6: Final answer
    x = 262,337.33

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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.