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Finding the Fourth Proportional to 166,063.71, 249,228.41 and 87,224.43

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Solution

The fourth proportional to 166,063.71, 249,228.41 and 87,224.43 is: 130,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,063.71 : 249,228.41 = 87,224.43 : x
  2. Step 2: Convert to fraction form
    166,063.71/249,228.41 = 87,224.43/x
  3. Step 3: Cross multiply
    166,063.71x = 249,228.41 × 87,224.43
  4. Step 4: Simplify right side
    166,063.71x = 21,738,805,565.93
  5. Step 5: Solve for x
    x = 21,738,805,565.93/166,063.71
  6. Step 6: Final answer
    x = 130,906.42

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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.