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Finding the Fourth Proportional to 166,212, 249,330.96 and 55,404

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Solution

The fourth proportional to 166,212, 249,330.96 and 55,404 is: 83,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212 : 249,330.96 = 55,404 : x
  2. Step 2: Convert to fraction form
    166,212/249,330.96 = 55,404/x
  3. Step 3: Cross multiply
    166,212x = 249,330.96 × 55,404
  4. Step 4: Simplify right side
    166,212x = 13,813,932,507.84
  5. Step 5: Solve for x
    x = 13,813,932,507.84/166,212
  6. Step 6: Final answer
    x = 83,110.32

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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.