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Finding the Fourth Proportional to 84,118.84, 126,361.42 and 50,854.58

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Solution

The fourth proportional to 84,118.84, 126,361.42 and 50,854.58 is: 76,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,118.84 : 126,361.42 = 50,854.58 : x
  2. Step 2: Convert to fraction form
    84,118.84/126,361.42 = 50,854.58/x
  3. Step 3: Cross multiply
    84,118.84x = 126,361.42 × 50,854.58
  4. Step 4: Simplify right side
    84,118.84x = 6,426,056,942.30
  5. Step 5: Solve for x
    x = 6,426,056,942.30/84,118.84
  6. Step 6: Final answer
    x = 76,392.60

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1.5x scale

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.