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Finding the Fourth Proportional to 113,158.64, 169,479.60 and 54,035.96

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Solution

The fourth proportional to 113,158.64, 169,479.60 and 54,035.96 is: 80,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,158.64 : 169,479.60 = 54,035.96 : x
  2. Step 2: Convert to fraction form
    113,158.64/169,479.60 = 54,035.96/x
  3. Step 3: Cross multiply
    113,158.64x = 169,479.60 × 54,035.96
  4. Step 4: Simplify right side
    113,158.64x = 9,157,992,886.42
  5. Step 5: Solve for x
    x = 9,157,992,886.42/113,158.64
  6. Step 6: Final answer
    x = 80,930.57

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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.