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Finding the Fourth Proportional to 135,854.55, 203,655.96 and 51,589.44

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Solution

The fourth proportional to 135,854.55, 203,655.96 and 51,589.44 is: 77,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,854.55 : 203,655.96 = 51,589.44 : x
  2. Step 2: Convert to fraction form
    135,854.55/203,655.96 = 51,589.44/x
  3. Step 3: Cross multiply
    135,854.55x = 203,655.96 × 51,589.44
  4. Step 4: Simplify right side
    135,854.55x = 10,506,496,929.06
  5. Step 5: Solve for x
    x = 10,506,496,929.06/135,854.55
  6. Step 6: Final answer
    x = 77,336.36

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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.