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Finding the Fourth Proportional to 93,101.06, 128,480.07 and 50,659.90

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Solution

The fourth proportional to 93,101.06, 128,480.07 and 50,659.90 is: 69,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,101.06 : 128,480.07 = 50,659.90 : x
  2. Step 2: Convert to fraction form
    93,101.06/128,480.07 = 50,659.90/x
  3. Step 3: Cross multiply
    93,101.06x = 128,480.07 × 50,659.90
  4. Step 4: Simplify right side
    93,101.06x = 6,508,787,366.97
  5. Step 5: Solve for x
    x = 6,508,787,366.97/93,101.06
  6. Step 6: Final answer
    x = 69,910.99

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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.