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Finding the Fourth Proportional to 83,632.69, 115,410.03 and 45,391.42

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Solution

The fourth proportional to 83,632.69, 115,410.03 and 45,391.42 is: 62,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,632.69 : 115,410.03 = 45,391.42 : x
  2. Step 2: Convert to fraction form
    83,632.69/115,410.03 = 45,391.42/x
  3. Step 3: Cross multiply
    83,632.69x = 115,410.03 × 45,391.42
  4. Step 4: Simplify right side
    83,632.69x = 5,238,624,613.98
  5. Step 5: Solve for x
    x = 5,238,624,613.98/83,632.69
  6. Step 6: Final answer
    x = 62,638.48

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