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Finding the Fourth Proportional to 92,169.56, 138,253.44 and 42,235.50

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Solution

The fourth proportional to 92,169.56, 138,253.44 and 42,235.50 is: 63,352.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,169.56 : 138,253.44 = 42,235.50 : x
  2. Step 2: Convert to fraction form
    92,169.56/138,253.44 = 42,235.50/x
  3. Step 3: Cross multiply
    92,169.56x = 138,253.44 × 42,235.50
  4. Step 4: Simplify right side
    92,169.56x = 5,839,203,165.12
  5. Step 5: Solve for x
    x = 5,839,203,165.12/92,169.56
  6. Step 6: Final answer
    x = 63,352.84

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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.