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Finding the Fourth Proportional to 89,087.22, 133,655.44 and 79,294.92

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Solution

The fourth proportional to 89,087.22, 133,655.44 and 79,294.92 is: 118,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,087.22 : 133,655.44 = 79,294.92 : x
  2. Step 2: Convert to fraction form
    89,087.22/133,655.44 = 79,294.92/x
  3. Step 3: Cross multiply
    89,087.22x = 133,655.44 × 79,294.92
  4. Step 4: Simplify right side
    89,087.22x = 10,598,197,422.36
  5. Step 5: Solve for x
    x = 10,598,197,422.36/89,087.22
  6. Step 6: Final answer
    x = 118,964.28

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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.