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Finding the Fourth Proportional to 166,211.70, 249,311.15 and 55,403.70

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Solution

The fourth proportional to 166,211.70, 249,311.15 and 55,403.70 is: 83,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,211.70 : 249,311.15 = 55,403.70 : x
  2. Step 2: Convert to fraction form
    166,211.70/249,311.15 = 55,403.70/x
  3. Step 3: Cross multiply
    166,211.70x = 249,311.15 × 55,403.70
  4. Step 4: Simplify right side
    166,211.70x = 13,812,760,161.26
  5. Step 5: Solve for x
    x = 13,812,760,161.26/166,211.70
  6. Step 6: Final answer
    x = 83,103.42

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1.5x scale

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.