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Finding the Fourth Proportional to 75,809.54, 104,626.20 and 43,979.51

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Solution

The fourth proportional to 75,809.54, 104,626.20 and 43,979.51 is: 60,696.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,809.54 : 104,626.20 = 43,979.51 : x
  2. Step 2: Convert to fraction form
    75,809.54/104,626.20 = 43,979.51/x
  3. Step 3: Cross multiply
    75,809.54x = 104,626.20 × 43,979.51
  4. Step 4: Simplify right side
    75,809.54x = 4,601,409,009.16
  5. Step 5: Solve for x
    x = 4,601,409,009.16/75,809.54
  6. Step 6: Final answer
    x = 60,696.97

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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.