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Finding the Fourth Proportional to 172,574.37, 258,936.96 and 60,335.19

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Solution

The fourth proportional to 172,574.37, 258,936.96 and 60,335.19 is: 90,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,574.37 : 258,936.96 = 60,335.19 : x
  2. Step 2: Convert to fraction form
    172,574.37/258,936.96 = 60,335.19/x
  3. Step 3: Cross multiply
    172,574.37x = 258,936.96 × 60,335.19
  4. Step 4: Simplify right side
    172,574.37x = 15,623,010,679.62
  5. Step 5: Solve for x
    x = 15,623,010,679.62/172,574.37
  6. Step 6: Final answer
    x = 90,529.15

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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.