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Finding the Fourth Proportional to 66,748.25, 100,033.81 and 55,676.63

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Solution

The fourth proportional to 66,748.25, 100,033.81 and 55,676.63 is: 83,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,748.25 : 100,033.81 = 55,676.63 : x
  2. Step 2: Convert to fraction form
    66,748.25/100,033.81 = 55,676.63/x
  3. Step 3: Cross multiply
    66,748.25x = 100,033.81 × 55,676.63
  4. Step 4: Simplify right side
    66,748.25x = 5,569,545,426.86
  5. Step 5: Solve for x
    x = 5,569,545,426.86/66,748.25
  6. Step 6: Final answer
    x = 83,441.07

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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.