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Finding the Fourth Proportional to 187,659.92, 258,906.48 and 107,029.52

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Solution

The fourth proportional to 187,659.92, 258,906.48 and 107,029.52 is: 147,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,659.92 : 258,906.48 = 107,029.52 : x
  2. Step 2: Convert to fraction form
    187,659.92/258,906.48 = 107,029.52/x
  3. Step 3: Cross multiply
    187,659.92x = 258,906.48 × 107,029.52
  4. Step 4: Simplify right side
    187,659.92x = 27,710,636,279.29
  5. Step 5: Solve for x
    x = 27,710,636,279.29/187,659.92
  6. Step 6: Final answer
    x = 147,664.12

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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.