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Finding the Fourth Proportional to 75,012.84, 103,517.46 and 41,478.84

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Solution

The fourth proportional to 75,012.84, 103,517.46 and 41,478.84 is: 57,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,012.84 : 103,517.46 = 41,478.84 : x
  2. Step 2: Convert to fraction form
    75,012.84/103,517.46 = 41,478.84/x
  3. Step 3: Cross multiply
    75,012.84x = 103,517.46 × 41,478.84
  4. Step 4: Simplify right side
    75,012.84x = 4,293,784,160.55
  5. Step 5: Solve for x
    x = 4,293,784,160.55/75,012.84
  6. Step 6: Final answer
    x = 57,240.66

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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.