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Finding the Fourth Proportional to 201,062.91, 277,313.07 and 136,581.87

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Solution

The fourth proportional to 201,062.91, 277,313.07 and 136,581.87 is: 188,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,062.91 : 277,313.07 = 136,581.87 : x
  2. Step 2: Convert to fraction form
    201,062.91/277,313.07 = 136,581.87/x
  3. Step 3: Cross multiply
    201,062.91x = 277,313.07 × 136,581.87
  4. Step 4: Simplify right side
    201,062.91x = 37,875,937,676.04
  5. Step 5: Solve for x
    x = 37,875,937,676.04/201,062.91
  6. Step 6: Final answer
    x = 188,378.54

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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.