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Finding the Fourth Proportional to 92,585.92, 138,885.42 and 45,826.24

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Solution

The fourth proportional to 92,585.92, 138,885.42 and 45,826.24 is: 68,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,585.92 : 138,885.42 = 45,826.24 : x
  2. Step 2: Convert to fraction form
    92,585.92/138,885.42 = 45,826.24/x
  3. Step 3: Cross multiply
    92,585.92x = 138,885.42 × 45,826.24
  4. Step 4: Simplify right side
    92,585.92x = 6,364,596,589.42
  5. Step 5: Solve for x
    x = 6,364,596,589.42/92,585.92
  6. Step 6: Final answer
    x = 68,742.60

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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.