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Finding the Fourth Proportional to 107,286.44, 148,021.04 and 61,958.44

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Solution

The fourth proportional to 107,286.44, 148,021.04 and 61,958.44 is: 85,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,286.44 : 148,021.04 = 61,958.44 : x
  2. Step 2: Convert to fraction form
    107,286.44/148,021.04 = 61,958.44/x
  3. Step 3: Cross multiply
    107,286.44x = 148,021.04 × 61,958.44
  4. Step 4: Simplify right side
    107,286.44x = 9,171,152,725.58
  5. Step 5: Solve for x
    x = 9,171,152,725.58/107,286.44
  6. Step 6: Final answer
    x = 85,482.87

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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.