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Finding the Fourth Proportional to 146,561.97, 219,846.75 and 39,946.80

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Solution

The fourth proportional to 146,561.97, 219,846.75 and 39,946.80 is: 59,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,561.97 : 219,846.75 = 39,946.80 : x
  2. Step 2: Convert to fraction form
    146,561.97/219,846.75 = 39,946.80/x
  3. Step 3: Cross multiply
    146,561.97x = 219,846.75 × 39,946.80
  4. Step 4: Simplify right side
    146,561.97x = 8,782,174,152.90
  5. Step 5: Solve for x
    x = 8,782,174,152.90/146,561.97
  6. Step 6: Final answer
    x = 59,921.23

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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.