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Finding the Fourth Proportional to 133,660.36, 200,527.50 and 118,971.88

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Solution

The fourth proportional to 133,660.36, 200,527.50 and 118,971.88 is: 178,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,660.36 : 200,527.50 = 118,971.88 : x
  2. Step 2: Convert to fraction form
    133,660.36/200,527.50 = 118,971.88/x
  3. Step 3: Cross multiply
    133,660.36x = 200,527.50 × 118,971.88
  4. Step 4: Simplify right side
    133,660.36x = 23,857,133,666.70
  5. Step 5: Solve for x
    x = 23,857,133,666.70/133,660.36
  6. Step 6: Final answer
    x = 178,490.72

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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.