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Finding the Fourth Proportional to 269,063.50, 371,307.63 and 155,951.86

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Solution

The fourth proportional to 269,063.50, 371,307.63 and 155,951.86 is: 215,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,063.50 : 371,307.63 = 155,951.86 : x
  2. Step 2: Convert to fraction form
    269,063.50/371,307.63 = 155,951.86/x
  3. Step 3: Cross multiply
    269,063.50x = 371,307.63 × 155,951.86
  4. Step 4: Simplify right side
    269,063.50x = 57,906,115,530.69
  5. Step 5: Solve for x
    x = 57,906,115,530.69/269,063.50
  6. Step 6: Final answer
    x = 215,213.57

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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.