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Finding the Fourth Proportional to 254,633.65, 351,262.67 and 172,966.11

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Solution

The fourth proportional to 254,633.65, 351,262.67 and 172,966.11 is: 238,603.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,633.65 : 351,262.67 = 172,966.11 : x
  2. Step 2: Convert to fraction form
    254,633.65/351,262.67 = 172,966.11/x
  3. Step 3: Cross multiply
    254,633.65x = 351,262.67 × 172,966.11
  4. Step 4: Simplify right side
    254,633.65x = 60,756,535,436.05
  5. Step 5: Solve for x
    x = 60,756,535,436.05/254,633.65
  6. Step 6: Final answer
    x = 238,603.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.