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Finding the Fourth Proportional to 56,984.92, 78,648.98 and 33,125.56

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Solution

The fourth proportional to 56,984.92, 78,648.98 and 33,125.56 is: 45,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,984.92 : 78,648.98 = 33,125.56 : x
  2. Step 2: Convert to fraction form
    56,984.92/78,648.98 = 33,125.56/x
  3. Step 3: Cross multiply
    56,984.92x = 78,648.98 × 33,125.56
  4. Step 4: Simplify right side
    56,984.92x = 2,605,291,143.68
  5. Step 5: Solve for x
    x = 2,605,291,143.68/56,984.92
  6. Step 6: Final answer
    x = 45,718.96

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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.