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Finding the Fourth Proportional to 133,361.40, 200,187.90 and 83,497.80

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Solution

The fourth proportional to 133,361.40, 200,187.90 and 83,497.80 is: 125,337.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,361.40 : 200,187.90 = 83,497.80 : x
  2. Step 2: Convert to fraction form
    133,361.40/200,187.90 = 83,497.80/x
  3. Step 3: Cross multiply
    133,361.40x = 200,187.90 × 83,497.80
  4. Step 4: Simplify right side
    133,361.40x = 16,715,249,236.62
  5. Step 5: Solve for x
    x = 16,715,249,236.62/133,361.40
  6. Step 6: Final answer
    x = 125,337.99

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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.