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Finding the Fourth Proportional to 92,560.42, 138,890.87 and 39,282.37

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Solution

The fourth proportional to 92,560.42, 138,890.87 and 39,282.37 is: 58,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,560.42 : 138,890.87 = 39,282.37 : x
  2. Step 2: Convert to fraction form
    92,560.42/138,890.87 = 39,282.37/x
  3. Step 3: Cross multiply
    92,560.42x = 138,890.87 × 39,282.37
  4. Step 4: Simplify right side
    92,560.42x = 5,455,962,539.26
  5. Step 5: Solve for x
    x = 5,455,962,539.26/92,560.42
  6. Step 6: Final answer
    x = 58,944.87

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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.