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Finding the Fourth Proportional to 255,838.14, 383,845.69 and 87,476.98

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Solution

The fourth proportional to 255,838.14, 383,845.69 and 87,476.98 is: 131,245.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,838.14 : 383,845.69 = 87,476.98 : x
  2. Step 2: Convert to fraction form
    255,838.14/383,845.69 = 87,476.98/x
  3. Step 3: Cross multiply
    255,838.14x = 383,845.69 × 87,476.98
  4. Step 4: Simplify right side
    255,838.14x = 33,577,661,862.69
  5. Step 5: Solve for x
    x = 33,577,661,862.69/255,838.14
  6. Step 6: Final answer
    x = 131,245.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.