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Finding the Fourth Proportional to 92,919.65, 128,229.27 and 50,478.22

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Solution

The fourth proportional to 92,919.65, 128,229.27 and 50,478.22 is: 69,660.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,919.65 : 128,229.27 = 50,478.22 : x
  2. Step 2: Convert to fraction form
    92,919.65/128,229.27 = 50,478.22/x
  3. Step 3: Cross multiply
    92,919.65x = 128,229.27 × 50,478.22
  4. Step 4: Simplify right side
    92,919.65x = 6,472,784,660.35
  5. Step 5: Solve for x
    x = 6,472,784,660.35/92,919.65
  6. Step 6: Final answer
    x = 69,660.02

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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.