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Finding the Fourth Proportional to 172,589.98, 258,899.94 and 52,673.95

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Solution

The fourth proportional to 172,589.98, 258,899.94 and 52,673.95 is: 79,015.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,589.98 : 258,899.94 = 52,673.95 : x
  2. Step 2: Convert to fraction form
    172,589.98/258,899.94 = 52,673.95/x
  3. Step 3: Cross multiply
    172,589.98x = 258,899.94 × 52,673.95
  4. Step 4: Simplify right side
    172,589.98x = 13,637,282,494.56
  5. Step 5: Solve for x
    x = 13,637,282,494.56/172,589.98
  6. Step 6: Final answer
    x = 79,015.49

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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.