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Finding the Fourth Proportional to 166,422.44, 249,811.52 and 71,699.67

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Solution

The fourth proportional to 166,422.44, 249,811.52 and 71,699.67 is: 107,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,422.44 : 249,811.52 = 71,699.67 : x
  2. Step 2: Convert to fraction form
    166,422.44/249,811.52 = 71,699.67/x
  3. Step 3: Cross multiply
    166,422.44x = 249,811.52 × 71,699.67
  4. Step 4: Simplify right side
    166,422.44x = 17,911,403,187.70
  5. Step 5: Solve for x
    x = 17,911,403,187.70/166,422.44
  6. Step 6: Final answer
    x = 107,626.13

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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.