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Finding the Fourth Proportional to 171,790.63, 237,082.29 and 99,196.59

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Solution

The fourth proportional to 171,790.63, 237,082.29 and 99,196.59 is: 136,897.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,790.63 : 237,082.29 = 99,196.59 : x
  2. Step 2: Convert to fraction form
    171,790.63/237,082.29 = 99,196.59/x
  3. Step 3: Cross multiply
    171,790.63x = 237,082.29 × 99,196.59
  4. Step 4: Simplify right side
    171,790.63x = 23,517,753,706.97
  5. Step 5: Solve for x
    x = 23,517,753,706.97/171,790.63
  6. Step 6: Final answer
    x = 136,897.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.