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Finding the Fourth Proportional to 161,274.42, 241,911.36 and 66,557.88

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Solution

The fourth proportional to 161,274.42, 241,911.36 and 66,557.88 is: 99,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,274.42 : 241,911.36 = 66,557.88 : x
  2. Step 2: Convert to fraction form
    161,274.42/241,911.36 = 66,557.88/x
  3. Step 3: Cross multiply
    161,274.42x = 241,911.36 × 66,557.88
  4. Step 4: Simplify right side
    161,274.42x = 16,101,107,269.52
  5. Step 5: Solve for x
    x = 16,101,107,269.52/161,274.42
  6. Step 6: Final answer
    x = 99,836.71

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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.