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Finding the Fourth Proportional to 133,361.40, 200,042.10 and 127,237.80

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Solution

The fourth proportional to 133,361.40, 200,042.10 and 127,237.80 is: 190,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,361.40 : 200,042.10 = 127,237.80 : x
  2. Step 2: Convert to fraction form
    133,361.40/200,042.10 = 127,237.80/x
  3. Step 3: Cross multiply
    133,361.40x = 200,042.10 × 127,237.80
  4. Step 4: Simplify right side
    133,361.40x = 25,452,916,711.38
  5. Step 5: Solve for x
    x = 25,452,916,711.38/133,361.40
  6. Step 6: Final answer
    x = 190,856.70

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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.