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Finding the Fourth Proportional to 92,234.28, 138,129.64 and 52,671.48

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Solution

The fourth proportional to 92,234.28, 138,129.64 and 52,671.48 is: 78,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,234.28 : 138,129.64 = 52,671.48 : x
  2. Step 2: Convert to fraction form
    92,234.28/138,129.64 = 52,671.48/x
  3. Step 3: Cross multiply
    92,234.28x = 138,129.64 × 52,671.48
  4. Step 4: Simplify right side
    92,234.28x = 7,275,492,570.67
  5. Step 5: Solve for x
    x = 7,275,492,570.67/92,234.28
  6. Step 6: Final answer
    x = 78,880.57

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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.