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Finding the Fourth Proportional to 127,797.68, 191,786.16 and 52,919.12

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Solution

The fourth proportional to 127,797.68, 191,786.16 and 52,919.12 is: 79,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,797.68 : 191,786.16 = 52,919.12 : x
  2. Step 2: Convert to fraction form
    127,797.68/191,786.16 = 52,919.12/x
  3. Step 3: Cross multiply
    127,797.68x = 191,786.16 × 52,919.12
  4. Step 4: Simplify right side
    127,797.68x = 10,149,154,815.38
  5. Step 5: Solve for x
    x = 10,149,154,815.38/127,797.68
  6. Step 6: Final answer
    x = 79,415.80

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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.