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Finding the Fourth Proportional to 172,673.51, 258,531.95 and 88,251.89

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Solution

The fourth proportional to 172,673.51, 258,531.95 and 88,251.89 is: 132,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,673.51 : 258,531.95 = 88,251.89 : x
  2. Step 2: Convert to fraction form
    172,673.51/258,531.95 = 88,251.89/x
  3. Step 3: Cross multiply
    172,673.51x = 258,531.95 × 88,251.89
  4. Step 4: Simplify right side
    172,673.51x = 22,815,932,140.86
  5. Step 5: Solve for x
    x = 22,815,932,140.86/172,673.51
  6. Step 6: Final answer
    x = 132,133.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.