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Finding the Fourth Proportional to 277,763.68, 383,306.70 and 156,917.44

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Solution

The fourth proportional to 277,763.68, 383,306.70 and 156,917.44 is: 216,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,763.68 : 383,306.70 = 156,917.44 : x
  2. Step 2: Convert to fraction form
    277,763.68/383,306.70 = 156,917.44/x
  3. Step 3: Cross multiply
    277,763.68x = 383,306.70 × 156,917.44
  4. Step 4: Simplify right side
    277,763.68x = 60,147,506,098.85
  5. Step 5: Solve for x
    x = 60,147,506,098.85/277,763.68
  6. Step 6: Final answer
    x = 216,542.01

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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.