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Finding the Fourth Proportional to 166,612.88, 249,919.12 and 54,292.92

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Solution

The fourth proportional to 166,612.88, 249,919.12 and 54,292.92 is: 81,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,612.88 : 249,919.12 = 54,292.92 : x
  2. Step 2: Convert to fraction form
    166,612.88/249,919.12 = 54,292.92/x
  3. Step 3: Cross multiply
    166,612.88x = 249,919.12 × 54,292.92
  4. Step 4: Simplify right side
    166,612.88x = 13,568,838,788.63
  5. Step 5: Solve for x
    x = 13,568,838,788.63/166,612.88
  6. Step 6: Final answer
    x = 81,439.31

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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.