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Finding the Fourth Proportional to 64,723.22, 89,272.03 and 43,202.11

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Solution

The fourth proportional to 64,723.22, 89,272.03 and 43,202.11 is: 59,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,723.22 : 89,272.03 = 43,202.11 : x
  2. Step 2: Convert to fraction form
    64,723.22/89,272.03 = 43,202.11/x
  3. Step 3: Cross multiply
    64,723.22x = 89,272.03 × 43,202.11
  4. Step 4: Simplify right side
    64,723.22x = 3,856,740,228.26
  5. Step 5: Solve for x
    x = 3,856,740,228.26/64,723.22
  6. Step 6: Final answer
    x = 59,588.20

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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.