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Finding the Fourth Proportional to 58,170.92, 87,181.88 and 50,643.79

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Solution

The fourth proportional to 58,170.92, 87,181.88 and 50,643.79 is: 75,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,170.92 : 87,181.88 = 50,643.79 : x
  2. Step 2: Convert to fraction form
    58,170.92/87,181.88 = 50,643.79/x
  3. Step 3: Cross multiply
    58,170.92x = 87,181.88 × 50,643.79
  4. Step 4: Simplify right side
    58,170.92x = 4,415,220,351.35
  5. Step 5: Solve for x
    x = 4,415,220,351.35/58,170.92
  6. Step 6: Final answer
    x = 75,900.82

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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.