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Finding the Fourth Proportional to 135,959.51, 203,982.83 and 56,034.90

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Solution

The fourth proportional to 135,959.51, 203,982.83 and 56,034.90 is: 84,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,959.51 : 203,982.83 = 56,034.90 : x
  2. Step 2: Convert to fraction form
    135,959.51/203,982.83 = 56,034.90/x
  3. Step 3: Cross multiply
    135,959.51x = 203,982.83 × 56,034.90
  4. Step 4: Simplify right side
    135,959.51x = 11,430,157,200.59
  5. Step 5: Solve for x
    x = 11,430,157,200.59/135,959.51
  6. Step 6: Final answer
    x = 84,070.31

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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.