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Finding the Fourth Proportional to 135,645.52, 203,493.80 and 54,598.74

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Solution

The fourth proportional to 135,645.52, 203,493.80 and 54,598.74 is: 81,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,645.52 : 203,493.80 = 54,598.74 : x
  2. Step 2: Convert to fraction form
    135,645.52/203,493.80 = 54,598.74/x
  3. Step 3: Cross multiply
    135,645.52x = 203,493.80 × 54,598.74
  4. Step 4: Simplify right side
    135,645.52x = 11,110,505,077.81
  5. Step 5: Solve for x
    x = 11,110,505,077.81/135,645.52
  6. Step 6: Final answer
    x = 81,908.38

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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.