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Finding the Fourth Proportional to 166,213.80, 249,320.70 and 53,893.80

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Solution

The fourth proportional to 166,213.80, 249,320.70 and 53,893.80 is: 80,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,213.80 : 249,320.70 = 53,893.80 : x
  2. Step 2: Convert to fraction form
    166,213.80/249,320.70 = 53,893.80/x
  3. Step 3: Cross multiply
    166,213.80x = 249,320.70 × 53,893.80
  4. Step 4: Simplify right side
    166,213.80x = 13,436,839,941.66
  5. Step 5: Solve for x
    x = 13,436,839,941.66/166,213.80
  6. Step 6: Final answer
    x = 80,840.70

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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.