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Finding the Fourth Proportional to 89,801.40, 134,847.90 and 60,349.80

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Solution

The fourth proportional to 89,801.40, 134,847.90 and 60,349.80 is: 90,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,801.40 : 134,847.90 = 60,349.80 : x
  2. Step 2: Convert to fraction form
    89,801.40/134,847.90 = 60,349.80/x
  3. Step 3: Cross multiply
    89,801.40x = 134,847.90 × 60,349.80
  4. Step 4: Simplify right side
    89,801.40x = 8,138,043,795.42
  5. Step 5: Solve for x
    x = 8,138,043,795.42/89,801.40
  6. Step 6: Final answer
    x = 90,622.68

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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.