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Finding the Fourth Proportional to 92,608.80, 138,983.48 and 61,008.08

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Solution

The fourth proportional to 92,608.80, 138,983.48 and 61,008.08 is: 91,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,608.80 : 138,983.48 = 61,008.08 : x
  2. Step 2: Convert to fraction form
    92,608.80/138,983.48 = 61,008.08/x
  3. Step 3: Cross multiply
    92,608.80x = 138,983.48 × 61,008.08
  4. Step 4: Simplify right side
    92,608.80x = 8,479,114,266.56
  5. Step 5: Solve for x
    x = 8,479,114,266.56/92,608.80
  6. Step 6: Final answer
    x = 91,558.41

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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.