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Finding the Fourth Proportional to 161,834.55, 242,751.42 and 43,505.88

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Solution

The fourth proportional to 161,834.55, 242,751.42 and 43,505.88 is: 65,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,834.55 : 242,751.42 = 43,505.88 : x
  2. Step 2: Convert to fraction form
    161,834.55/242,751.42 = 43,505.88/x
  3. Step 3: Cross multiply
    161,834.55x = 242,751.42 × 43,505.88
  4. Step 4: Simplify right side
    161,834.55x = 10,561,114,148.35
  5. Step 5: Solve for x
    x = 10,561,114,148.35/161,834.55
  6. Step 6: Final answer
    x = 65,258.71

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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.