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Finding the Fourth Proportional to 133,063.56, 199,631.79 and 66,423.24

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Solution

The fourth proportional to 133,063.56, 199,631.79 and 66,423.24 is: 99,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,063.56 : 199,631.79 = 66,423.24 : x
  2. Step 2: Convert to fraction form
    133,063.56/199,631.79 = 66,423.24/x
  3. Step 3: Cross multiply
    133,063.56x = 199,631.79 × 66,423.24
  4. Step 4: Simplify right side
    133,063.56x = 13,260,190,298.80
  5. Step 5: Solve for x
    x = 13,260,190,298.80/133,063.56
  6. Step 6: Final answer
    x = 99,653.06

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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.