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Finding the Fourth Proportional to 168,667.51, 232,738.61 and 108,319.87

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Solution

The fourth proportional to 168,667.51, 232,738.61 and 108,319.87 is: 149,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,667.51 : 232,738.61 = 108,319.87 : x
  2. Step 2: Convert to fraction form
    168,667.51/232,738.61 = 108,319.87/x
  3. Step 3: Cross multiply
    168,667.51x = 232,738.61 × 108,319.87
  4. Step 4: Simplify right side
    168,667.51x = 25,210,215,979.18
  5. Step 5: Solve for x
    x = 25,210,215,979.18/168,667.51
  6. Step 6: Final answer
    x = 149,466.94

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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.