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Finding the Fourth Proportional to 80,243.48, 110,734.64 and 44,432.72

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Solution

The fourth proportional to 80,243.48, 110,734.64 and 44,432.72 is: 61,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,243.48 : 110,734.64 = 44,432.72 : x
  2. Step 2: Convert to fraction form
    80,243.48/110,734.64 = 44,432.72/x
  3. Step 3: Cross multiply
    80,243.48x = 110,734.64 × 44,432.72
  4. Step 4: Simplify right side
    80,243.48x = 4,920,241,253.42
  5. Step 5: Solve for x
    x = 4,920,241,253.42/80,243.48
  6. Step 6: Final answer
    x = 61,316.40

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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.