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Finding the Fourth Proportional to 172,795.82, 259,154.84 and 61,987.82

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Solution

The fourth proportional to 172,795.82, 259,154.84 and 61,987.82 is: 92,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,795.82 : 259,154.84 = 61,987.82 : x
  2. Step 2: Convert to fraction form
    172,795.82/259,154.84 = 61,987.82/x
  3. Step 3: Cross multiply
    172,795.82x = 259,154.84 × 61,987.82
  4. Step 4: Simplify right side
    172,795.82x = 16,064,442,433.24
  5. Step 5: Solve for x
    x = 16,064,442,433.24/172,795.82
  6. Step 6: Final answer
    x = 92,967.77

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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.