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Finding the Fourth Proportional to 64,257.60, 88,613.28 and 50,105.28

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Solution

The fourth proportional to 64,257.60, 88,613.28 and 50,105.28 is: 69,096.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,257.60 : 88,613.28 = 50,105.28 : x
  2. Step 2: Convert to fraction form
    64,257.60/88,613.28 = 50,105.28/x
  3. Step 3: Cross multiply
    64,257.60x = 88,613.28 × 50,105.28
  4. Step 4: Simplify right side
    64,257.60x = 4,439,993,206.12
  5. Step 5: Solve for x
    x = 4,439,993,206.12/64,257.60
  6. Step 6: Final answer
    x = 69,096.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.