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Finding the Fourth Proportional to 166,651.92, 249,978.36 and 40,291.92

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Solution

The fourth proportional to 166,651.92, 249,978.36 and 40,291.92 is: 60,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,651.92 : 249,978.36 = 40,291.92 : x
  2. Step 2: Convert to fraction form
    166,651.92/249,978.36 = 40,291.92/x
  3. Step 3: Cross multiply
    166,651.92x = 249,978.36 × 40,291.92
  4. Step 4: Simplify right side
    166,651.92x = 10,072,108,082.85
  5. Step 5: Solve for x
    x = 10,072,108,082.85/166,651.92
  6. Step 6: Final answer
    x = 60,438.00

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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.