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Finding the Fourth Proportional to 80,243.31, 110,734.41 and 44,432.55

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Solution

The fourth proportional to 80,243.31, 110,734.41 and 44,432.55 is: 61,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,243.31 : 110,734.41 = 44,432.55 : x
  2. Step 2: Convert to fraction form
    80,243.31/110,734.41 = 44,432.55/x
  3. Step 3: Cross multiply
    80,243.31x = 110,734.41 × 44,432.55
  4. Step 4: Simplify right side
    80,243.31x = 4,920,212,313.18
  5. Step 5: Solve for x
    x = 4,920,212,313.18/80,243.31
  6. Step 6: Final answer
    x = 61,316.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.