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Finding the Fourth Proportional to 63,399.40, 95,063.54 and 43,431.46

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Solution

The fourth proportional to 63,399.40, 95,063.54 and 43,431.46 is: 65,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,399.40 : 95,063.54 = 43,431.46 : x
  2. Step 2: Convert to fraction form
    63,399.40/95,063.54 = 43,431.46/x
  3. Step 3: Cross multiply
    63,399.40x = 95,063.54 × 43,431.46
  4. Step 4: Simplify right side
    63,399.40x = 4,128,748,334.97
  5. Step 5: Solve for x
    x = 4,128,748,334.97/63,399.40
  6. Step 6: Final answer
    x = 65,122.83

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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.