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Finding the Fourth Proportional to 161,245.90, 241,803.24 and 72,475.57

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Solution

The fourth proportional to 161,245.90, 241,803.24 and 72,475.57 is: 108,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,245.90 : 241,803.24 = 72,475.57 : x
  2. Step 2: Convert to fraction form
    161,245.90/241,803.24 = 72,475.57/x
  3. Step 3: Cross multiply
    161,245.90x = 241,803.24 × 72,475.57
  4. Step 4: Simplify right side
    161,245.90x = 17,524,827,646.85
  5. Step 5: Solve for x
    x = 17,524,827,646.85/161,245.90
  6. Step 6: Final answer
    x = 108,683.87

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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.