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Finding the Fourth Proportional to 100,958.80, 151,426.14 and 41,787.40

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Solution

The fourth proportional to 100,958.80, 151,426.14 and 41,787.40 is: 62,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,958.80 : 151,426.14 = 41,787.40 : x
  2. Step 2: Convert to fraction form
    100,958.80/151,426.14 = 41,787.40/x
  3. Step 3: Cross multiply
    100,958.80x = 151,426.14 × 41,787.40
  4. Step 4: Simplify right side
    100,958.80x = 6,327,704,682.64
  5. Step 5: Solve for x
    x = 6,327,704,682.64/100,958.80
  6. Step 6: Final answer
    x = 62,676.11

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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.