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Finding the Fourth Proportional to 277,978.55, 383,611.05 and 150,654.11

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Solution

The fourth proportional to 277,978.55, 383,611.05 and 150,654.11 is: 207,903.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,978.55 : 383,611.05 = 150,654.11 : x
  2. Step 2: Convert to fraction form
    277,978.55/383,611.05 = 150,654.11/x
  3. Step 3: Cross multiply
    277,978.55x = 383,611.05 × 150,654.11
  4. Step 4: Simplify right side
    277,978.55x = 57,792,581,323.92
  5. Step 5: Solve for x
    x = 57,792,581,323.92/277,978.55
  6. Step 6: Final answer
    x = 207,903.02

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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.