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Finding the Fourth Proportional to 172,795.13, 259,153.81 and 61,987.13

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Solution

The fourth proportional to 172,795.13, 259,153.81 and 61,987.13 is: 92,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,795.13 : 259,153.81 = 61,987.13 : x
  2. Step 2: Convert to fraction form
    172,795.13/259,153.81 = 61,987.13/x
  3. Step 3: Cross multiply
    172,795.13x = 259,153.81 × 61,987.13
  4. Step 4: Simplify right side
    172,795.13x = 16,064,200,910.47
  5. Step 5: Solve for x
    x = 16,064,200,910.47/172,795.13
  6. Step 6: Final answer
    x = 92,966.75

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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.