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Finding the Fourth Proportional to 172,676.74, 259,056.58 and 66,058.95

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Solution

The fourth proportional to 172,676.74, 259,056.58 and 66,058.95 is: 99,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,676.74 : 259,056.58 = 66,058.95 : x
  2. Step 2: Convert to fraction form
    172,676.74/259,056.58 = 66,058.95/x
  3. Step 3: Cross multiply
    172,676.74x = 259,056.58 × 66,058.95
  4. Step 4: Simplify right side
    172,676.74x = 17,113,005,138.37
  5. Step 5: Solve for x
    x = 17,113,005,138.37/172,676.74
  6. Step 6: Final answer
    x = 99,104.29

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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.