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Finding the Fourth Proportional to 166,469.50, 249,729.10 and 61,280.46

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Solution

The fourth proportional to 166,469.50, 249,729.10 and 61,280.46 is: 91,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,469.50 : 249,729.10 = 61,280.46 : x
  2. Step 2: Convert to fraction form
    166,469.50/249,729.10 = 61,280.46/x
  3. Step 3: Cross multiply
    166,469.50x = 249,729.10 × 61,280.46
  4. Step 4: Simplify right side
    166,469.50x = 15,303,514,123.39
  5. Step 5: Solve for x
    x = 15,303,514,123.39/166,469.50
  6. Step 6: Final answer
    x = 91,929.84

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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.