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Finding the Fourth Proportional to 172,297.93, 258,463.10 and 50,718.54

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Solution

The fourth proportional to 172,297.93, 258,463.10 and 50,718.54 is: 76,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,297.93 : 258,463.10 = 50,718.54 : x
  2. Step 2: Convert to fraction form
    172,297.93/258,463.10 = 50,718.54/x
  3. Step 3: Cross multiply
    172,297.93x = 258,463.10 × 50,718.54
  4. Step 4: Simplify right side
    172,297.93x = 13,108,872,126.64
  5. Step 5: Solve for x
    x = 13,108,872,126.64/172,297.93
  6. Step 6: Final answer
    x = 76,082.59

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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.