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Finding the Fourth Proportional to 89,797.28, 134,547.12 and 54,630.56

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Solution

The fourth proportional to 89,797.28, 134,547.12 and 54,630.56 is: 81,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,797.28 : 134,547.12 = 54,630.56 : x
  2. Step 2: Convert to fraction form
    89,797.28/134,547.12 = 54,630.56/x
  3. Step 3: Cross multiply
    89,797.28x = 134,547.12 × 54,630.56
  4. Step 4: Simplify right side
    89,797.28x = 7,350,384,511.99
  5. Step 5: Solve for x
    x = 7,350,384,511.99/89,797.28
  6. Step 6: Final answer
    x = 81,855.31

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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.