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Finding the Fourth Proportional to 133,391.40, 187,059 and 133,391.40

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Solution

The fourth proportional to 133,391.40, 187,059 and 133,391.40 is: 187,059

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,391.40 : 187,059 = 133,391.40 : x
  2. Step 2: Convert to fraction form
    133,391.40/187,059 = 133,391.40/x
  3. Step 3: Cross multiply
    133,391.40x = 187,059 × 133,391.40
  4. Step 4: Simplify right side
    133,391.40x = 24,952,061,892.60
  5. Step 5: Solve for x
    x = 24,952,061,892.60/133,391.40
  6. Step 6: Final answer
    x = 187,059

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.