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Finding the Fourth Proportional to 89,157.60, 133,724.16 and 62,422.56

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Solution

The fourth proportional to 89,157.60, 133,724.16 and 62,422.56 is: 93,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,157.60 : 133,724.16 = 62,422.56 : x
  2. Step 2: Convert to fraction form
    89,157.60/133,724.16 = 62,422.56/x
  3. Step 3: Cross multiply
    89,157.60x = 133,724.16 × 62,422.56
  4. Step 4: Simplify right side
    89,157.60x = 8,347,404,401.05
  5. Step 5: Solve for x
    x = 8,347,404,401.05/89,157.60
  6. Step 6: Final answer
    x = 93,625.27

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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.