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Finding the Fourth Proportional to 64,659.79, 89,220.24 and 36,360.01

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Solution

The fourth proportional to 64,659.79, 89,220.24 and 36,360.01 is: 50,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,659.79 : 89,220.24 = 36,360.01 : x
  2. Step 2: Convert to fraction form
    64,659.79/89,220.24 = 36,360.01/x
  3. Step 3: Cross multiply
    64,659.79x = 89,220.24 × 36,360.01
  4. Step 4: Simplify right side
    64,659.79x = 3,244,048,964.93
  5. Step 5: Solve for x
    x = 3,244,048,964.93/64,659.79
  6. Step 6: Final answer
    x = 50,171.04

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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.