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Finding the Fourth Proportional to 90,560.66, 135,788.28 and 60,609.08

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Solution

The fourth proportional to 90,560.66, 135,788.28 and 60,609.08 is: 90,878.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,560.66 : 135,788.28 = 60,609.08 : x
  2. Step 2: Convert to fraction form
    90,560.66/135,788.28 = 60,609.08/x
  3. Step 3: Cross multiply
    90,560.66x = 135,788.28 × 60,609.08
  4. Step 4: Simplify right side
    90,560.66x = 8,230,002,046.64
  5. Step 5: Solve for x
    x = 8,230,002,046.64/90,560.66
  6. Step 6: Final answer
    x = 90,878.34

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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.