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Finding the Fourth Proportional to 124,524.80, 186,787.20 and 89,532.80

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Solution

The fourth proportional to 124,524.80, 186,787.20 and 89,532.80 is: 134,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,524.80 : 186,787.20 = 89,532.80 : x
  2. Step 2: Convert to fraction form
    124,524.80/186,787.20 = 89,532.80/x
  3. Step 3: Cross multiply
    124,524.80x = 186,787.20 × 89,532.80
  4. Step 4: Simplify right side
    124,524.80x = 16,723,581,020.16
  5. Step 5: Solve for x
    x = 16,723,581,020.16/124,524.80
  6. Step 6: Final answer
    x = 134,299.20

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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.