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Finding the Fourth Proportional to 56,874.65, 85,283.91 and 33,190.79

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Solution

The fourth proportional to 56,874.65, 85,283.91 and 33,190.79 is: 49,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,874.65 : 85,283.91 = 33,190.79 : x
  2. Step 2: Convert to fraction form
    56,874.65/85,283.91 = 33,190.79/x
  3. Step 3: Cross multiply
    56,874.65x = 85,283.91 × 33,190.79
  4. Step 4: Simplify right side
    56,874.65x = 2,830,639,920.77
  5. Step 5: Solve for x
    x = 2,830,639,920.77/56,874.65
  6. Step 6: Final answer
    x = 49,769.80

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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.