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Finding the Fourth Proportional to 92,182.50, 138,276.99 and 52,721.46

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Solution

The fourth proportional to 92,182.50, 138,276.99 and 52,721.46 is: 79,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,182.50 : 138,276.99 = 52,721.46 : x
  2. Step 2: Convert to fraction form
    92,182.50/138,276.99 = 52,721.46/x
  3. Step 3: Cross multiply
    92,182.50x = 138,276.99 × 52,721.46
  4. Step 4: Simplify right side
    92,182.50x = 7,290,164,797.21
  5. Step 5: Solve for x
    x = 7,290,164,797.21/92,182.50
  6. Step 6: Final answer
    x = 79,084.04

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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.