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Finding the Fourth Proportional to 133,706.67, 200,424.99 and 83,821.80

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Solution

The fourth proportional to 133,706.67, 200,424.99 and 83,821.80 is: 125,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,706.67 : 200,424.99 = 83,821.80 : x
  2. Step 2: Convert to fraction form
    133,706.67/200,424.99 = 83,821.80/x
  3. Step 3: Cross multiply
    133,706.67x = 200,424.99 × 83,821.80
  4. Step 4: Simplify right side
    133,706.67x = 16,799,983,426.78
  5. Step 5: Solve for x
    x = 16,799,983,426.78/133,706.67
  6. Step 6: Final answer
    x = 125,648.06

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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.