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Finding the Fourth Proportional to 166,512.87, 249,867.72 and 61,405.65

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Solution

The fourth proportional to 166,512.87, 249,867.72 and 61,405.65 is: 92,144.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,512.87 : 249,867.72 = 61,405.65 : x
  2. Step 2: Convert to fraction form
    166,512.87/249,867.72 = 61,405.65/x
  3. Step 3: Cross multiply
    166,512.87x = 249,867.72 × 61,405.65
  4. Step 4: Simplify right side
    166,512.87x = 15,343,289,760.62
  5. Step 5: Solve for x
    x = 15,343,289,760.62/166,512.87
  6. Step 6: Final answer
    x = 92,144.77

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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.