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Finding the Fourth Proportional to 134,665.20, 201,997.80 and 45,910.80

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Solution

The fourth proportional to 134,665.20, 201,997.80 and 45,910.80 is: 68,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,665.20 : 201,997.80 = 45,910.80 : x
  2. Step 2: Convert to fraction form
    134,665.20/201,997.80 = 45,910.80/x
  3. Step 3: Cross multiply
    134,665.20x = 201,997.80 × 45,910.80
  4. Step 4: Simplify right side
    134,665.20x = 9,273,880,596.24
  5. Step 5: Solve for x
    x = 9,273,880,596.24/134,665.20
  6. Step 6: Final answer
    x = 68,866.20

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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.