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Finding the Fourth Proportional to 63,763.68, 87,996.72 and 53,135.52

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Solution

The fourth proportional to 63,763.68, 87,996.72 and 53,135.52 is: 73,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,763.68 : 87,996.72 = 53,135.52 : x
  2. Step 2: Convert to fraction form
    63,763.68/87,996.72 = 53,135.52/x
  3. Step 3: Cross multiply
    63,763.68x = 87,996.72 × 53,135.52
  4. Step 4: Simplify right side
    63,763.68x = 4,675,751,475.49
  5. Step 5: Solve for x
    x = 4,675,751,475.49/63,763.68
  6. Step 6: Final answer
    x = 73,329.39

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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.