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Finding the Fourth Proportional to 277,639.50, 383,113.11 and 156,773.46

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Solution

The fourth proportional to 277,639.50, 383,113.11 and 156,773.46 is: 216,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,639.50 : 383,113.11 = 156,773.46 : x
  2. Step 2: Convert to fraction form
    277,639.50/383,113.11 = 156,773.46/x
  3. Step 3: Cross multiply
    277,639.50x = 383,113.11 × 156,773.46
  4. Step 4: Simplify right side
    277,639.50x = 60,061,967,826.06
  5. Step 5: Solve for x
    x = 60,061,967,826.06/277,639.50
  6. Step 6: Final answer
    x = 216,330.77

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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.