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Finding the Fourth Proportional to 133,013.92, 199,354.40 and 66,472.64

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Solution

The fourth proportional to 133,013.92, 199,354.40 and 66,472.64 is: 99,625.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,013.92 : 199,354.40 = 66,472.64 : x
  2. Step 2: Convert to fraction form
    133,013.92/199,354.40 = 66,472.64/x
  3. Step 3: Cross multiply
    133,013.92x = 199,354.40 × 66,472.64
  4. Step 4: Simplify right side
    133,013.92x = 13,251,613,263.62
  5. Step 5: Solve for x
    x = 13,251,613,263.62/133,013.92
  6. Step 6: Final answer
    x = 99,625.76

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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.