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Finding the Fourth Proportional to 64,402.43, 96,478.55 and 36,236.60

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Solution

The fourth proportional to 64,402.43, 96,478.55 and 36,236.60 is: 54,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,402.43 : 96,478.55 = 36,236.60 : x
  2. Step 2: Convert to fraction form
    64,402.43/96,478.55 = 36,236.60/x
  3. Step 3: Cross multiply
    64,402.43x = 96,478.55 × 36,236.60
  4. Step 4: Simplify right side
    64,402.43x = 3,496,054,624.93
  5. Step 5: Solve for x
    x = 3,496,054,624.93/64,402.43
  6. Step 6: Final answer
    x = 54,284.51

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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.