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Finding the Fourth Proportional to 107,956.80, 161,740.80 and 101,450.88

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Solution

The fourth proportional to 107,956.80, 161,740.80 and 101,450.88 is: 151,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,956.80 : 161,740.80 = 101,450.88 : x
  2. Step 2: Convert to fraction form
    107,956.80/161,740.80 = 101,450.88/x
  3. Step 3: Cross multiply
    107,956.80x = 161,740.80 × 101,450.88
  4. Step 4: Simplify right side
    107,956.80x = 16,408,746,491.90
  5. Step 5: Solve for x
    x = 16,408,746,491.90/107,956.80
  6. Step 6: Final answer
    x = 151,993.64

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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.