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Finding the Fourth Proportional to 93,434.43, 128,940.41 and 50,992.97

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Solution

The fourth proportional to 93,434.43, 128,940.41 and 50,992.97 is: 70,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,434.43 : 128,940.41 = 50,992.97 : x
  2. Step 2: Convert to fraction form
    93,434.43/128,940.41 = 50,992.97/x
  3. Step 3: Cross multiply
    93,434.43x = 128,940.41 × 50,992.97
  4. Step 4: Simplify right side
    93,434.43x = 6,575,053,559.25
  5. Step 5: Solve for x
    x = 6,575,053,559.25/93,434.43
  6. Step 6: Final answer
    x = 70,370.78

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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.