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Finding the Fourth Proportional to 92,810.80, 139,216.20 and 33,646.40

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Solution

The fourth proportional to 92,810.80, 139,216.20 and 33,646.40 is: 50,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,810.80 : 139,216.20 = 33,646.40 : x
  2. Step 2: Convert to fraction form
    92,810.80/139,216.20 = 33,646.40/x
  3. Step 3: Cross multiply
    92,810.80x = 139,216.20 × 33,646.40
  4. Step 4: Simplify right side
    92,810.80x = 4,684,123,951.68
  5. Step 5: Solve for x
    x = 4,684,123,951.68/92,810.80
  6. Step 6: Final answer
    x = 50,469.60

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Similar ratio
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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.