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Finding the Fourth Proportional to 89,281.80, 133,828.20 and 33,085.80

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Solution

The fourth proportional to 89,281.80, 133,828.20 and 33,085.80 is: 49,593.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,281.80 : 133,828.20 = 33,085.80 : x
  2. Step 2: Convert to fraction form
    89,281.80/133,828.20 = 33,085.80/x
  3. Step 3: Cross multiply
    89,281.80x = 133,828.20 × 33,085.80
  4. Step 4: Simplify right side
    89,281.80x = 4,427,813,059.56
  5. Step 5: Solve for x
    x = 4,427,813,059.56/89,281.80
  6. Step 6: Final answer
    x = 49,593.68

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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.