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Finding the Fourth Proportional to 166,375.69, 249,621.85 and 72,888.73

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Solution

The fourth proportional to 166,375.69, 249,621.85 and 72,888.73 is: 109,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,375.69 : 249,621.85 = 72,888.73 : x
  2. Step 2: Convert to fraction form
    166,375.69/249,621.85 = 72,888.73/x
  3. Step 3: Cross multiply
    166,375.69x = 249,621.85 × 72,888.73
  4. Step 4: Simplify right side
    166,375.69x = 18,194,619,093.81
  5. Step 5: Solve for x
    x = 18,194,619,093.81/166,375.69
  6. Step 6: Final answer
    x = 109,358.64

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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.