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Finding the Fourth Proportional to 196,861.88, 271,669.40 and 107,437.88

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Solution

The fourth proportional to 196,861.88, 271,669.40 and 107,437.88 is: 148,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,861.88 : 271,669.40 = 107,437.88 : x
  2. Step 2: Convert to fraction form
    196,861.88/271,669.40 = 107,437.88/x
  3. Step 3: Cross multiply
    196,861.88x = 271,669.40 × 107,437.88
  4. Step 4: Simplify right side
    196,861.88x = 29,187,582,501.34
  5. Step 5: Solve for x
    x = 29,187,582,501.34/196,861.88
  6. Step 6: Final answer
    x = 148,264.27

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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.