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Finding the Fourth Proportional to 89,904.40, 135,002.40 and 60,452.80

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Solution

The fourth proportional to 89,904.40, 135,002.40 and 60,452.80 is: 90,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,904.40 : 135,002.40 = 60,452.80 : x
  2. Step 2: Convert to fraction form
    89,904.40/135,002.40 = 60,452.80/x
  3. Step 3: Cross multiply
    89,904.40x = 135,002.40 × 60,452.80
  4. Step 4: Simplify right side
    89,904.40x = 8,161,273,086.72
  5. Step 5: Solve for x
    x = 8,161,273,086.72/89,904.40
  6. Step 6: Final answer
    x = 90,777.24

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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.