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Finding the Fourth Proportional to 86,744.52, 129,908.88 and 44,513.52

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Solution

The fourth proportional to 86,744.52, 129,908.88 and 44,513.52 is: 66,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,744.52 : 129,908.88 = 44,513.52 : x
  2. Step 2: Convert to fraction form
    86,744.52/129,908.88 = 44,513.52/x
  3. Step 3: Cross multiply
    86,744.52x = 129,908.88 × 44,513.52
  4. Step 4: Simplify right side
    86,744.52x = 5,782,701,528.06
  5. Step 5: Solve for x
    x = 5,782,701,528.06/86,744.52
  6. Step 6: Final answer
    x = 66,663.59

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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.