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Finding the Fourth Proportional to 92,861.70, 139,276.35 and 33,666.90

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Solution

The fourth proportional to 92,861.70, 139,276.35 and 33,666.90 is: 50,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,861.70 : 139,276.35 = 33,666.90 : x
  2. Step 2: Convert to fraction form
    92,861.70/139,276.35 = 33,666.90/x
  3. Step 3: Cross multiply
    92,861.70x = 139,276.35 × 33,666.90
  4. Step 4: Simplify right side
    92,861.70x = 4,689,002,947.82
  5. Step 5: Solve for x
    x = 4,689,002,947.82/92,861.70
  6. Step 6: Final answer
    x = 50,494.48

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1.5x scale

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.