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Finding the Fourth Proportional to 80,361.90, 110,877.48 and 50,152.05

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Solution

The fourth proportional to 80,361.90, 110,877.48 and 50,152.05 is: 69,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,361.90 : 110,877.48 = 50,152.05 : x
  2. Step 2: Convert to fraction form
    80,361.90/110,877.48 = 50,152.05/x
  3. Step 3: Cross multiply
    80,361.90x = 110,877.48 × 50,152.05
  4. Step 4: Simplify right side
    80,361.90x = 5,560,732,920.83
  5. Step 5: Solve for x
    x = 5,560,732,920.83/80,361.90
  6. Step 6: Final answer
    x = 69,196.14

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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.