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Finding the Fourth Proportional to 166,508.87, 249,861.71 and 61,401.65

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Solution

The fourth proportional to 166,508.87, 249,861.71 and 61,401.65 is: 92,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,508.87 : 249,861.71 = 61,401.65 : x
  2. Step 2: Convert to fraction form
    166,508.87/249,861.71 = 61,401.65/x
  3. Step 3: Cross multiply
    166,508.87x = 249,861.71 × 61,401.65
  4. Step 4: Simplify right side
    166,508.87x = 15,341,920,170.02
  5. Step 5: Solve for x
    x = 15,341,920,170.02/166,508.87
  6. Step 6: Final answer
    x = 92,138.76

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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.