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Finding the Fourth Proportional to 172,469.98, 258,871.81 and 124,488.06

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Solution

The fourth proportional to 172,469.98, 258,871.81 and 124,488.06 is: 186,852.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,469.98 : 258,871.81 = 124,488.06 : x
  2. Step 2: Convert to fraction form
    172,469.98/258,871.81 = 124,488.06/x
  3. Step 3: Cross multiply
    172,469.98x = 258,871.81 × 124,488.06
  4. Step 4: Simplify right side
    172,469.98x = 32,226,449,415.59
  5. Step 5: Solve for x
    x = 32,226,449,415.59/172,469.98
  6. Step 6: Final answer
    x = 186,852.51

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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.