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Finding the Fourth Proportional to 166,223.68, 249,187.62 and 61,018

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Solution

The fourth proportional to 166,223.68, 249,187.62 and 61,018 is: 91,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,223.68 : 249,187.62 = 61,018 : x
  2. Step 2: Convert to fraction form
    166,223.68/249,187.62 = 61,018/x
  3. Step 3: Cross multiply
    166,223.68x = 249,187.62 × 61,018
  4. Step 4: Simplify right side
    166,223.68x = 15,204,930,197.16
  5. Step 5: Solve for x
    x = 15,204,930,197.16/166,223.68
  6. Step 6: Final answer
    x = 91,472.71

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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.