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Finding the Fourth Proportional to 92,856.78, 139,352.81 and 33,697.22

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Solution

The fourth proportional to 92,856.78, 139,352.81 and 33,697.22 is: 50,570.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,856.78 : 139,352.81 = 33,697.22 : x
  2. Step 2: Convert to fraction form
    92,856.78/139,352.81 = 33,697.22/x
  3. Step 3: Cross multiply
    92,856.78x = 139,352.81 × 33,697.22
  4. Step 4: Simplify right side
    92,856.78x = 4,695,801,430.94
  5. Step 5: Solve for x
    x = 4,695,801,430.94/92,856.78
  6. Step 6: Final answer
    x = 50,570.37

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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.