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Finding the Fourth Proportional to 161,855.91, 242,754.47 and 43,499.57

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Solution

The fourth proportional to 161,855.91, 242,754.47 and 43,499.57 is: 65,241.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,855.91 : 242,754.47 = 43,499.57 : x
  2. Step 2: Convert to fraction form
    161,855.91/242,754.47 = 43,499.57/x
  3. Step 3: Cross multiply
    161,855.91x = 242,754.47 × 43,499.57
  4. Step 4: Simplify right side
    161,855.91x = 10,559,713,629.31
  5. Step 5: Solve for x
    x = 10,559,713,629.31/161,855.91
  6. Step 6: Final answer
    x = 65,241.45

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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.