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Finding the Fourth Proportional to 93,249.68, 128,701.20 and 55,006.88

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Solution

The fourth proportional to 93,249.68, 128,701.20 and 55,006.88 is: 75,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,249.68 : 128,701.20 = 55,006.88 : x
  2. Step 2: Convert to fraction form
    93,249.68/128,701.20 = 55,006.88/x
  3. Step 3: Cross multiply
    93,249.68x = 128,701.20 × 55,006.88
  4. Step 4: Simplify right side
    93,249.68x = 7,079,451,464.26
  5. Step 5: Solve for x
    x = 7,079,451,464.26/93,249.68
  6. Step 6: Final answer
    x = 75,919.31

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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.