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Finding the Fourth Proportional to 187,506.52, 258,669.54 and 115,860.76

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Solution

The fourth proportional to 187,506.52, 258,669.54 and 115,860.76 is: 159,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,506.52 : 258,669.54 = 115,860.76 : x
  2. Step 2: Convert to fraction form
    187,506.52/258,669.54 = 115,860.76/x
  3. Step 3: Cross multiply
    187,506.52x = 258,669.54 × 115,860.76
  4. Step 4: Simplify right side
    187,506.52x = 29,969,649,493.25
  5. Step 5: Solve for x
    x = 29,969,649,493.25/187,506.52
  6. Step 6: Final answer
    x = 159,832.57

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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.