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Finding the Fourth Proportional to 166,308.66, 249,462.72 and 47,980.62

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Solution

The fourth proportional to 166,308.66, 249,462.72 and 47,980.62 is: 71,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,308.66 : 249,462.72 = 47,980.62 : x
  2. Step 2: Convert to fraction form
    166,308.66/249,462.72 = 47,980.62/x
  3. Step 3: Cross multiply
    166,308.66x = 249,462.72 × 47,980.62
  4. Step 4: Simplify right side
    166,308.66x = 11,969,375,972.49
  5. Step 5: Solve for x
    x = 11,969,375,972.49/166,308.66
  6. Step 6: Final answer
    x = 71,970.85

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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.