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Finding the Fourth Proportional to 92,827.28, 128,101.80 and 50,385.80

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Solution

The fourth proportional to 92,827.28, 128,101.80 and 50,385.80 is: 69,532.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,827.28 : 128,101.80 = 50,385.80 : x
  2. Step 2: Convert to fraction form
    92,827.28/128,101.80 = 50,385.80/x
  3. Step 3: Cross multiply
    92,827.28x = 128,101.80 × 50,385.80
  4. Step 4: Simplify right side
    92,827.28x = 6,454,511,674.44
  5. Step 5: Solve for x
    x = 6,454,511,674.44/92,827.28
  6. Step 6: Final answer
    x = 69,532.49

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1.5x scale

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.