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Finding the Fourth Proportional to 135,655.90, 203,483.85 and 61,927.90

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Solution

The fourth proportional to 135,655.90, 203,483.85 and 61,927.90 is: 92,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,655.90 : 203,483.85 = 61,927.90 : x
  2. Step 2: Convert to fraction form
    135,655.90/203,483.85 = 61,927.90/x
  3. Step 3: Cross multiply
    135,655.90x = 203,483.85 × 61,927.90
  4. Step 4: Simplify right side
    135,655.90x = 12,601,327,514.42
  5. Step 5: Solve for x
    x = 12,601,327,514.42/135,655.90
  6. Step 6: Final answer
    x = 92,891.85

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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.