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Finding the Fourth Proportional to 140,624.77, 194,062.50 and 76,966.67

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Solution

The fourth proportional to 140,624.77, 194,062.50 and 76,966.67 is: 106,214.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,624.77 : 194,062.50 = 76,966.67 : x
  2. Step 2: Convert to fraction form
    140,624.77/194,062.50 = 76,966.67/x
  3. Step 3: Cross multiply
    140,624.77x = 194,062.50 × 76,966.67
  4. Step 4: Simplify right side
    140,624.77x = 14,936,344,396.88
  5. Step 5: Solve for x
    x = 14,936,344,396.88/140,624.77
  6. Step 6: Final answer
    x = 106,214.18

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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.