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Finding the Fourth Proportional to 554,932.81, 832,399.62 and 134,209.09

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Solution

The fourth proportional to 554,932.81, 832,399.62 and 134,209.09 is: 201,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,932.81 : 832,399.62 = 134,209.09 : x
  2. Step 2: Convert to fraction form
    554,932.81/832,399.62 = 134,209.09/x
  3. Step 3: Cross multiply
    554,932.81x = 832,399.62 × 134,209.09
  4. Step 4: Simplify right side
    554,932.81x = 111,715,595,516.55
  5. Step 5: Solve for x
    x = 111,715,595,516.55/554,932.81
  6. Step 6: Final answer
    x = 201,313.73

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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.