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Finding the Fourth Proportional to 71,792.88, 107,620.20 and 36,749.04

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Solution

The fourth proportional to 71,792.88, 107,620.20 and 36,749.04 is: 55,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.88 : 107,620.20 = 36,749.04 : x
  2. Step 2: Convert to fraction form
    71,792.88/107,620.20 = 36,749.04/x
  3. Step 3: Cross multiply
    71,792.88x = 107,620.20 × 36,749.04
  4. Step 4: Simplify right side
    71,792.88x = 3,954,939,034.61
  5. Step 5: Solve for x
    x = 3,954,939,034.61/71,792.88
  6. Step 6: Final answer
    x = 55,088.18

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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.