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Finding the Fourth Proportional to 63,231.74, 87,300.47 and 40,580.49

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Solution

The fourth proportional to 63,231.74, 87,300.47 and 40,580.49 is: 56,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,231.74 : 87,300.47 = 40,580.49 : x
  2. Step 2: Convert to fraction form
    63,231.74/87,300.47 = 40,580.49/x
  3. Step 3: Cross multiply
    63,231.74x = 87,300.47 × 40,580.49
  4. Step 4: Simplify right side
    63,231.74x = 3,542,695,951.28
  5. Step 5: Solve for x
    x = 3,542,695,951.28/63,231.74
  6. Step 6: Final answer
    x = 56,027.18

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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.