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Finding the Fourth Proportional to 78,744.67, 108,664.94 and 44,752.57

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Solution

The fourth proportional to 78,744.67, 108,664.94 and 44,752.57 is: 61,757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,744.67 : 108,664.94 = 44,752.57 : x
  2. Step 2: Convert to fraction form
    78,744.67/108,664.94 = 44,752.57/x
  3. Step 3: Cross multiply
    78,744.67x = 108,664.94 × 44,752.57
  4. Step 4: Simplify right side
    78,744.67x = 4,863,035,174.11
  5. Step 5: Solve for x
    x = 4,863,035,174.11/78,744.67
  6. Step 6: Final answer
    x = 61,757.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.