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Finding the Fourth Proportional to 133,423.45, 200,134.06 and 54,482.31

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Solution

The fourth proportional to 133,423.45, 200,134.06 and 54,482.31 is: 81,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,423.45 : 200,134.06 = 54,482.31 : x
  2. Step 2: Convert to fraction form
    133,423.45/200,134.06 = 54,482.31/x
  3. Step 3: Cross multiply
    133,423.45x = 200,134.06 × 54,482.31
  4. Step 4: Simplify right side
    133,423.45x = 10,903,765,898.48
  5. Step 5: Solve for x
    x = 10,903,765,898.48/133,423.45
  6. Step 6: Final answer
    x = 81,723.01

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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.