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Finding the Fourth Proportional to 133,423.29, 199,936.89 and 74,177.46

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Solution

The fourth proportional to 133,423.29, 199,936.89 and 74,177.46 is: 111,156.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,423.29 : 199,936.89 = 74,177.46 : x
  2. Step 2: Convert to fraction form
    133,423.29/199,936.89 = 74,177.46/x
  3. Step 3: Cross multiply
    133,423.29x = 199,936.89 × 74,177.46
  4. Step 4: Simplify right side
    133,423.29x = 14,830,810,660.50
  5. Step 5: Solve for x
    x = 14,830,810,660.50/133,423.29
  6. Step 6: Final answer
    x = 111,156.09

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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.