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Finding the Fourth Proportional to 166,516.67, 249,709.25 and 66,658.25

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Solution

The fourth proportional to 166,516.67, 249,709.25 and 66,658.25 is: 99,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,516.67 : 249,709.25 = 66,658.25 : x
  2. Step 2: Convert to fraction form
    166,516.67/249,709.25 = 66,658.25/x
  3. Step 3: Cross multiply
    166,516.67x = 249,709.25 × 66,658.25
  4. Step 4: Simplify right side
    166,516.67x = 16,645,180,531.91
  5. Step 5: Solve for x
    x = 16,645,180,531.91/166,516.67
  6. Step 6: Final answer
    x = 99,961.05

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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.