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Finding the Fourth Proportional to 133,974.61, 201,007.68 and 83,994.37

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Solution

The fourth proportional to 133,974.61, 201,007.68 and 83,994.37 is: 126,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,974.61 : 201,007.68 = 83,994.37 : x
  2. Step 2: Convert to fraction form
    133,974.61/201,007.68 = 83,994.37/x
  3. Step 3: Cross multiply
    133,974.61x = 201,007.68 × 83,994.37
  4. Step 4: Simplify right side
    133,974.61x = 16,883,513,446.76
  5. Step 5: Solve for x
    x = 16,883,513,446.76/133,974.61
  6. Step 6: Final answer
    x = 126,020.25

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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.