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Finding the Fourth Proportional to 92,458.56, 138,471.84 and 45,560.64

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Solution

The fourth proportional to 92,458.56, 138,471.84 and 45,560.64 is: 68,234.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,458.56 : 138,471.84 = 45,560.64 : x
  2. Step 2: Convert to fraction form
    92,458.56/138,471.84 = 45,560.64/x
  3. Step 3: Cross multiply
    92,458.56x = 138,471.84 × 45,560.64
  4. Step 4: Simplify right side
    92,458.56x = 6,308,865,652.38
  5. Step 5: Solve for x
    x = 6,308,865,652.38/92,458.56
  6. Step 6: Final answer
    x = 68,234.52

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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.