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Finding the Fourth Proportional to 134,191.94, 201,320.90 and 66,755.80

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Solution

The fourth proportional to 134,191.94, 201,320.90 and 66,755.80 is: 100,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,191.94 : 201,320.90 = 66,755.80 : x
  2. Step 2: Convert to fraction form
    134,191.94/201,320.90 = 66,755.80/x
  3. Step 3: Cross multiply
    134,191.94x = 201,320.90 × 66,755.80
  4. Step 4: Simplify right side
    134,191.94x = 13,439,336,395.84
  5. Step 5: Solve for x
    x = 13,439,336,395.84/134,191.94
  6. Step 6: Final answer
    x = 100,150.10

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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.