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Finding the Fourth Proportional to 277,751.69, 383,320.94 and 156,915.16

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Solution

The fourth proportional to 277,751.69, 383,320.94 and 156,915.16 is: 216,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,751.69 : 383,320.94 = 156,915.16 : x
  2. Step 2: Convert to fraction form
    277,751.69/383,320.94 = 156,915.16/x
  3. Step 3: Cross multiply
    277,751.69x = 383,320.94 × 156,915.16
  4. Step 4: Simplify right side
    277,751.69x = 60,148,866,631.45
  5. Step 5: Solve for x
    x = 60,148,866,631.45/277,751.69
  6. Step 6: Final answer
    x = 216,556.26

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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.