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Finding the Fourth Proportional to 277,292.88, 382,667.90 and 156,433.82

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Solution

The fourth proportional to 277,292.88, 382,667.90 and 156,433.82 is: 215,880.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,292.88 : 382,667.90 = 156,433.82 : x
  2. Step 2: Convert to fraction form
    277,292.88/382,667.90 = 156,433.82/x
  3. Step 3: Cross multiply
    277,292.88x = 382,667.90 × 156,433.82
  4. Step 4: Simplify right side
    277,292.88x = 59,862,198,692.87
  5. Step 5: Solve for x
    x = 59,862,198,692.87/277,292.88
  6. Step 6: Final answer
    x = 215,880.76

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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.