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Finding the Fourth Proportional to 92,614.56, 138,928.08 and 45,854.88

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Solution

The fourth proportional to 92,614.56, 138,928.08 and 45,854.88 is: 68,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,614.56 : 138,928.08 = 45,854.88 : x
  2. Step 2: Convert to fraction form
    92,614.56/138,928.08 = 45,854.88/x
  3. Step 3: Cross multiply
    92,614.56x = 138,928.08 × 45,854.88
  4. Step 4: Simplify right side
    92,614.56x = 6,370,530,437.03
  5. Step 5: Solve for x
    x = 6,370,530,437.03/92,614.56
  6. Step 6: Final answer
    x = 68,785.41

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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.