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Finding the Fourth Proportional to 107,940.60, 161,882.10 and 37,812.60

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Solution

The fourth proportional to 107,940.60, 161,882.10 and 37,812.60 is: 56,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,940.60 : 161,882.10 = 37,812.60 : x
  2. Step 2: Convert to fraction form
    107,940.60/161,882.10 = 37,812.60/x
  3. Step 3: Cross multiply
    107,940.60x = 161,882.10 × 37,812.60
  4. Step 4: Simplify right side
    107,940.60x = 6,121,183,094.46
  5. Step 5: Solve for x
    x = 6,121,183,094.46/107,940.60
  6. Step 6: Final answer
    x = 56,708.81

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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.