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Finding the Fourth Proportional to 92,794.34, 128,049.15 and 54,555.46

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Solution

The fourth proportional to 92,794.34, 128,049.15 and 54,555.46 is: 75,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,794.34 : 128,049.15 = 54,555.46 : x
  2. Step 2: Convert to fraction form
    92,794.34/128,049.15 = 54,555.46/x
  3. Step 3: Cross multiply
    92,794.34x = 128,049.15 × 54,555.46
  4. Step 4: Simplify right side
    92,794.34x = 6,985,780,165.32
  5. Step 5: Solve for x
    x = 6,985,780,165.32/92,794.34
  6. Step 6: Final answer
    x = 75,282.39

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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.