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Finding the Fourth Proportional to 72,505.60, 108,792.69 and 35,044.54

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Solution

The fourth proportional to 72,505.60, 108,792.69 and 35,044.54 is: 52,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,505.60 : 108,792.69 = 35,044.54 : x
  2. Step 2: Convert to fraction form
    72,505.60/108,792.69 = 35,044.54/x
  3. Step 3: Cross multiply
    72,505.60x = 108,792.69 × 35,044.54
  4. Step 4: Simplify right side
    72,505.60x = 3,812,589,776.41
  5. Step 5: Solve for x
    x = 3,812,589,776.41/72,505.60
  6. Step 6: Final answer
    x = 52,583.38

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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.