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Finding the Fourth Proportional to 68,472.20, 94,482.96 and 40,167.56

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Solution

The fourth proportional to 68,472.20, 94,482.96 and 40,167.56 is: 55,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,472.20 : 94,482.96 = 40,167.56 : x
  2. Step 2: Convert to fraction form
    68,472.20/94,482.96 = 40,167.56/x
  3. Step 3: Cross multiply
    68,472.20x = 94,482.96 × 40,167.56
  4. Step 4: Simplify right side
    68,472.20x = 3,795,150,050.36
  5. Step 5: Solve for x
    x = 3,795,150,050.36/68,472.20
  6. Step 6: Final answer
    x = 55,426.14

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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.