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Finding the Fourth Proportional to 93,093.21, 128,471.37 and 50,654.49

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Solution

The fourth proportional to 93,093.21, 128,471.37 and 50,654.49 is: 69,904.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,093.21 : 128,471.37 = 50,654.49 : x
  2. Step 2: Convert to fraction form
    93,093.21/128,471.37 = 50,654.49/x
  3. Step 3: Cross multiply
    93,093.21x = 128,471.37 × 50,654.49
  4. Step 4: Simplify right side
    93,093.21x = 6,507,651,726.95
  5. Step 5: Solve for x
    x = 6,507,651,726.95/93,093.21
  6. Step 6: Final answer
    x = 69,904.69

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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.