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Finding the Fourth Proportional to 118,476.41, 177,723.77 and 39,590.91

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Solution

The fourth proportional to 118,476.41, 177,723.77 and 39,590.91 is: 59,389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,476.41 : 177,723.77 = 39,590.91 : x
  2. Step 2: Convert to fraction form
    118,476.41/177,723.77 = 39,590.91/x
  3. Step 3: Cross multiply
    118,476.41x = 177,723.77 × 39,590.91
  4. Step 4: Simplify right side
    118,476.41x = 7,036,245,584.98
  5. Step 5: Solve for x
    x = 7,036,245,584.98/118,476.41
  6. Step 6: Final answer
    x = 59,389.43

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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.