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Finding the Fourth Proportional to 168,561, 252,807.27 and 61,908.30

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Solution

The fourth proportional to 168,561, 252,807.27 and 61,908.30 is: 92,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,561 : 252,807.27 = 61,908.30 : x
  2. Step 2: Convert to fraction form
    168,561/252,807.27 = 61,908.30/x
  3. Step 3: Cross multiply
    168,561x = 252,807.27 × 61,908.30
  4. Step 4: Simplify right side
    168,561x = 15,650,868,313.34
  5. Step 5: Solve for x
    x = 15,650,868,313.34/168,561
  6. Step 6: Final answer
    x = 92,849.88

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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.