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Finding the Fourth Proportional to 92,859.20, 139,272.60 and 33,664.40

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Solution

The fourth proportional to 92,859.20, 139,272.60 and 33,664.40 is: 50,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,859.20 : 139,272.60 = 33,664.40 : x
  2. Step 2: Convert to fraction form
    92,859.20/139,272.60 = 33,664.40/x
  3. Step 3: Cross multiply
    92,859.20x = 139,272.60 × 33,664.40
  4. Step 4: Simplify right side
    92,859.20x = 4,688,528,515.44
  5. Step 5: Solve for x
    x = 4,688,528,515.44/92,859.20
  6. Step 6: Final answer
    x = 50,490.73

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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.