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Finding the Fourth Proportional to 92,625.76, 138,716.62 and 47,528.44

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Solution

The fourth proportional to 92,625.76, 138,716.62 and 47,528.44 is: 71,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,625.76 : 138,716.62 = 47,528.44 : x
  2. Step 2: Convert to fraction form
    92,625.76/138,716.62 = 47,528.44/x
  3. Step 3: Cross multiply
    92,625.76x = 138,716.62 × 47,528.44
  4. Step 4: Simplify right side
    92,625.76x = 6,592,984,550.67
  5. Step 5: Solve for x
    x = 6,592,984,550.67/92,625.76
  6. Step 6: Final answer
    x = 71,178.74

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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.