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Finding the Fourth Proportional to 166,642.60, 249,234.90 and 149,000.80

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Solution

The fourth proportional to 166,642.60, 249,234.90 and 149,000.80 is: 222,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,642.60 : 249,234.90 = 149,000.80 : x
  2. Step 2: Convert to fraction form
    166,642.60/249,234.90 = 149,000.80/x
  3. Step 3: Cross multiply
    166,642.60x = 249,234.90 × 149,000.80
  4. Step 4: Simplify right side
    166,642.60x = 37,136,199,487.92
  5. Step 5: Solve for x
    x = 37,136,199,487.92/166,642.60
  6. Step 6: Final answer
    x = 222,849.38

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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.