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Finding the Fourth Proportional to 92,926.10, 128,249.02 and 55,200.50

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Solution

The fourth proportional to 92,926.10, 128,249.02 and 55,200.50 is: 76,183.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,926.10 : 128,249.02 = 55,200.50 : x
  2. Step 2: Convert to fraction form
    92,926.10/128,249.02 = 55,200.50/x
  3. Step 3: Cross multiply
    92,926.10x = 128,249.02 × 55,200.50
  4. Step 4: Simplify right side
    92,926.10x = 7,079,410,028.51
  5. Step 5: Solve for x
    x = 7,079,410,028.51/92,926.10
  6. Step 6: Final answer
    x = 76,183.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.