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Finding the Fourth Proportional to 161,990.60, 242,984.46 and 43,652.12

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Solution

The fourth proportional to 161,990.60, 242,984.46 and 43,652.12 is: 65,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,990.60 : 242,984.46 = 43,652.12 : x
  2. Step 2: Convert to fraction form
    161,990.60/242,984.46 = 43,652.12/x
  3. Step 3: Cross multiply
    161,990.60x = 242,984.46 × 43,652.12
  4. Step 4: Simplify right side
    161,990.60x = 10,606,786,806.06
  5. Step 5: Solve for x
    x = 10,606,786,806.06/161,990.60
  6. Step 6: Final answer
    x = 65,477.79

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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.