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Finding the Fourth Proportional to 112,344.62, 168,516.50 and 45,769.90

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Solution

The fourth proportional to 112,344.62, 168,516.50 and 45,769.90 is: 68,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,344.62 : 168,516.50 = 45,769.90 : x
  2. Step 2: Convert to fraction form
    112,344.62/168,516.50 = 45,769.90/x
  3. Step 3: Cross multiply
    112,344.62x = 168,516.50 × 45,769.90
  4. Step 4: Simplify right side
    112,344.62x = 7,712,983,353.35
  5. Step 5: Solve for x
    x = 7,712,983,353.35/112,344.62
  6. Step 6: Final answer
    x = 68,654.67

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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.