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Finding the Fourth Proportional to 75,713.81, 104,487.44 and 43,454.34

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Solution

The fourth proportional to 75,713.81, 104,487.44 and 43,454.34 is: 59,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,713.81 : 104,487.44 = 43,454.34 : x
  2. Step 2: Convert to fraction form
    75,713.81/104,487.44 = 43,454.34/x
  3. Step 3: Cross multiply
    75,713.81x = 104,487.44 × 43,454.34
  4. Step 4: Simplify right side
    75,713.81x = 4,540,432,526.22
  5. Step 5: Solve for x
    x = 4,540,432,526.22/75,713.81
  6. Step 6: Final answer
    x = 59,968.36

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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.