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Finding the Fourth Proportional to 269,504.85, 371,915.96 and 154,790.93

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Solution

The fourth proportional to 269,504.85, 371,915.96 and 154,790.93 is: 213,611.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,504.85 : 371,915.96 = 154,790.93 : x
  2. Step 2: Convert to fraction form
    269,504.85/371,915.96 = 154,790.93/x
  3. Step 3: Cross multiply
    269,504.85x = 371,915.96 × 154,790.93
  4. Step 4: Simplify right side
    269,504.85x = 57,569,217,486.08
  5. Step 5: Solve for x
    x = 57,569,217,486.08/269,504.85
  6. Step 6: Final answer
    x = 213,611.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.