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Finding the Fourth Proportional to 89,954.20, 134,672.10 and 54,962.20

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Solution

The fourth proportional to 89,954.20, 134,672.10 and 54,962.20 is: 82,284.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,954.20 : 134,672.10 = 54,962.20 : x
  2. Step 2: Convert to fraction form
    89,954.20/134,672.10 = 54,962.20/x
  3. Step 3: Cross multiply
    89,954.20x = 134,672.10 × 54,962.20
  4. Step 4: Simplify right side
    89,954.20x = 7,401,874,894.62
  5. Step 5: Solve for x
    x = 7,401,874,894.62/89,954.20
  6. Step 6: Final answer
    x = 82,284.93

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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.