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Finding the Fourth Proportional to 135,384.40, 203,076.60 and 133,051.60

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Solution

The fourth proportional to 135,384.40, 203,076.60 and 133,051.60 is: 199,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,384.40 : 203,076.60 = 133,051.60 : x
  2. Step 2: Convert to fraction form
    135,384.40/203,076.60 = 133,051.60/x
  3. Step 3: Cross multiply
    135,384.40x = 203,076.60 × 133,051.60
  4. Step 4: Simplify right side
    135,384.40x = 27,019,666,552.56
  5. Step 5: Solve for x
    x = 27,019,666,552.56/135,384.40
  6. Step 6: Final answer
    x = 199,577.40

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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.