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Finding the Fourth Proportional to 329,868.40, 494,737.80 and 108,252.40

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Solution

The fourth proportional to 329,868.40, 494,737.80 and 108,252.40 is: 162,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,868.40 : 494,737.80 = 108,252.40 : x
  2. Step 2: Convert to fraction form
    329,868.40/494,737.80 = 108,252.40/x
  3. Step 3: Cross multiply
    329,868.40x = 494,737.80 × 108,252.40
  4. Step 4: Simplify right side
    329,868.40x = 53,556,554,220.72
  5. Step 5: Solve for x
    x = 53,556,554,220.72/329,868.40
  6. Step 6: Final answer
    x = 162,357.33

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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.