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Finding the Fourth Proportional to 92,794.85, 128,049.85 and 54,555.96

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Solution

The fourth proportional to 92,794.85, 128,049.85 and 54,555.96 is: 75,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,794.85 : 128,049.85 = 54,555.96 : x
  2. Step 2: Convert to fraction form
    92,794.85/128,049.85 = 54,555.96/x
  3. Step 3: Cross multiply
    92,794.85x = 128,049.85 × 54,555.96
  4. Step 4: Simplify right side
    92,794.85x = 6,985,882,221.83
  5. Step 5: Solve for x
    x = 6,985,882,221.83/92,794.85
  6. Step 6: Final answer
    x = 75,283.09

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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.