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Finding the Fourth Proportional to 133,020.53, 199,530.79 and 133,020.53

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Solution

The fourth proportional to 133,020.53, 199,530.79 and 133,020.53 is: 199,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020.53 : 199,530.79 = 133,020.53 : x
  2. Step 2: Convert to fraction form
    133,020.53/199,530.79 = 133,020.53/x
  3. Step 3: Cross multiply
    133,020.53x = 199,530.79 × 133,020.53
  4. Step 4: Simplify right side
    133,020.53x = 26,541,690,106.91
  5. Step 5: Solve for x
    x = 26,541,690,106.91/133,020.53
  6. Step 6: Final answer
    x = 199,530.79

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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.