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Finding the Fourth Proportional to 78,586.89, 108,446.90 and 44,593.35

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Solution

The fourth proportional to 78,586.89, 108,446.90 and 44,593.35 is: 61,537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,586.89 : 108,446.90 = 44,593.35 : x
  2. Step 2: Convert to fraction form
    78,586.89/108,446.90 = 44,593.35/x
  3. Step 3: Cross multiply
    78,586.89x = 108,446.90 × 44,593.35
  4. Step 4: Simplify right side
    78,586.89x = 4,836,010,751.82
  5. Step 5: Solve for x
    x = 4,836,010,751.82/78,586.89
  6. Step 6: Final answer
    x = 61,537.12

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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.