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Finding the Fourth Proportional to 102,895.20, 154,342.80 and 36,334.80

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Solution

The fourth proportional to 102,895.20, 154,342.80 and 36,334.80 is: 54,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,895.20 : 154,342.80 = 36,334.80 : x
  2. Step 2: Convert to fraction form
    102,895.20/154,342.80 = 36,334.80/x
  3. Step 3: Cross multiply
    102,895.20x = 154,342.80 × 36,334.80
  4. Step 4: Simplify right side
    102,895.20x = 5,608,014,769.44
  5. Step 5: Solve for x
    x = 5,608,014,769.44/102,895.20
  6. Step 6: Final answer
    x = 54,502.20

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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.