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Finding the Fourth Proportional to 51,081.60, 76,476.60 and 49,623.60

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Solution

The fourth proportional to 51,081.60, 76,476.60 and 49,623.60 is: 74,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,081.60 : 76,476.60 = 49,623.60 : x
  2. Step 2: Convert to fraction form
    51,081.60/76,476.60 = 49,623.60/x
  3. Step 3: Cross multiply
    51,081.60x = 76,476.60 × 49,623.60
  4. Step 4: Simplify right side
    51,081.60x = 3,795,044,207.76
  5. Step 5: Solve for x
    x = 3,795,044,207.76/51,081.60
  6. Step 6: Final answer
    x = 74,293.76

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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.