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Finding the Fourth Proportional to 63,668.56, 87,902.40 and 41,018.80

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Solution

The fourth proportional to 63,668.56, 87,902.40 and 41,018.80 is: 56,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,668.56 : 87,902.40 = 41,018.80 : x
  2. Step 2: Convert to fraction form
    63,668.56/87,902.40 = 41,018.80/x
  3. Step 3: Cross multiply
    63,668.56x = 87,902.40 × 41,018.80
  4. Step 4: Simplify right side
    63,668.56x = 3,605,650,965.12
  5. Step 5: Solve for x
    x = 3,605,650,965.12/63,668.56
  6. Step 6: Final answer
    x = 56,631.58

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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.