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Finding the Fourth Proportional to 164,243.90, 246,289.21 and 85,336.94

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Solution

The fourth proportional to 164,243.90, 246,289.21 and 85,336.94 is: 127,965.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,243.90 : 246,289.21 = 85,336.94 : x
  2. Step 2: Convert to fraction form
    164,243.90/246,289.21 = 85,336.94/x
  3. Step 3: Cross multiply
    164,243.90x = 246,289.21 × 85,336.94
  4. Step 4: Simplify right side
    164,243.90x = 21,017,567,938.80
  5. Step 5: Solve for x
    x = 21,017,567,938.80/164,243.90
  6. Step 6: Final answer
    x = 127,965.59

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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.