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Finding the Fourth Proportional to 133,358.56, 200,038.08 and 54,472.80

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Solution

The fourth proportional to 133,358.56, 200,038.08 and 54,472.80 is: 81,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,358.56 : 200,038.08 = 54,472.80 : x
  2. Step 2: Convert to fraction form
    133,358.56/200,038.08 = 54,472.80/x
  3. Step 3: Cross multiply
    133,358.56x = 200,038.08 × 54,472.80
  4. Step 4: Simplify right side
    133,358.56x = 10,896,634,324.22
  5. Step 5: Solve for x
    x = 10,896,634,324.22/133,358.56
  6. Step 6: Final answer
    x = 81,709.30

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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.