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Finding the Fourth Proportional to 93,081.96, 128,452.52 and 50,640.68

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Solution

The fourth proportional to 93,081.96, 128,452.52 and 50,640.68 is: 69,883.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,081.96 : 128,452.52 = 50,640.68 : x
  2. Step 2: Convert to fraction form
    93,081.96/128,452.52 = 50,640.68/x
  3. Step 3: Cross multiply
    93,081.96x = 128,452.52 × 50,640.68
  4. Step 4: Simplify right side
    93,081.96x = 6,504,922,960.51
  5. Step 5: Solve for x
    x = 6,504,922,960.51/93,081.96
  6. Step 6: Final answer
    x = 69,883.82

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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.